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TAP Focus

TAP Focus is an exciting thematic video collection designed to keep readers updated on the hottest topics in the antennas and propagation field. It includes short, captivating videos featuring the most popular articles published in the journal, all neatly organized according to their focus topics.

April 2, 2024

[TAP Focus] Topic XV: Leaky Wave Antennas Ⅱ

February 29, 2024

[TAP Focus] Topic XV: Leaky Wave Antennas Ⅰ

February 8, 2024

[TAP Focus] Topic XIV: Lens Antennas II

January 29, 2024

[TAP Focus] Topic XIV: Lens Antennas I

January 10, 2024

[TAP Focus] Topic XIII: Phased Array Antennas III

January 2, 2024

[TAP Focus] Topic XIII: Phased Array Antennas Ⅱ

January 2, 2024

[TAP Focus] Topic XIII: Phased Array Antennas Ⅰ

December 6, 2023

[TAP Focus] Topic XII: Metasurface Antennas

December 6, 2023

[TAP Focus] Topic XI: Reconfigurable Antennas II

December 6, 2023

[TAP Focus] Topic XI: Reconfigurable Antennas Ⅰ

November 2, 2023

[TAP Focus] Topic X: Filtering Antennas

October 16, 2023

[TAP Focus] Topic IX: Decoupling Methods

September 26, 2023

[TAP Focus] Topic VIII: Machine Learning Assisted Antenna Designs

September 16, 2023

[TAP Focus] Topic VII: Reflectarray Antennas

September 06, 2023

[TAP Focus] Topic VI: Wireless Power Transfer (WPT)

August 28, 2023

[TAP Focus] Topic V: Transmitarray Antennas

August 16, 2023

[TAP Focus] Topic IV: Frequency-Selective Structures

August 7, 2023

[TAP Focus] Topic III: Dielectric Resonator Antennas

July 26, 2023

[TAP Focus] Topic II: Beam Steering Antennas

July 11, 2023

[TAP Focus] Topic I: Patch Antennas

Previously Featured Articles

Celebrating 70 Years of Scientific Influence

Since 1952, the IEEE Transactions on Antennas and Propagation, formerly known as Transactions of the IRE Professional Group on Antennas and Propagation (1952-1955) and IRE Transactions on Antennas and Propagation (1955-1962), has delivered thousands of articles on a wide range of topics of interest to specialists, engineers, educators, and students in the field of interest of the IEEE Antennas and Propagation Society.

To celebrate this event, some of the most influential and original research articles published in this journal since its founding are highlighted here. These articles will be offered on an open access basis until 31 December 2023. Take this opportunity to dive into a selection of the key research that contributed to the advancement of the antennas and propagation field as we know it today.

Years 1952-1961

Trentini 1956

G. V. Trentini, "Partially reflecting sheet arrays," in IRE Transactions on Antennas and Propagation, vol. 4, no. 4, pp. 666-671, October 1956, doi: 10.1109/TAP.1956.1144455.

In this pioneering work, multiple reflections of electromagnetic waves between two planes were studied for the first time, and the increase in directivity resulting by placing a partially reflecting sheet in front of an antenna was investigated. Starting from such analyses, the “reflex-cavity antenna” was described as a practical example of the developed theory. This study introduced to the AP-S the concept of leaky-wave antenna based on a partially reflecting surface backed by a ground plane, being a solid basis for many works published in the successive years.

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Taylor 1955

T. T. Taylor, "Design of line-source antennas for narrow beamwidth and low side lobes," in Transactions of the IRE Professional Group on Antennas and Propagation, vol. 3, no. 1, pp. 16-28, Jan. 1955, doi: 10.1109/TPGAP.1955.5720407.

Nowadays, T. T. Taylor's work from 1955, which presented a line source design that achieved an optimal balance between beamwidth and side-lobe level, is widely regarded as a classic paper in our community. In fact, it is frequently referenced in standard antenna textbooks.

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Kaiser 1960

J. Kaiser, "The Archimedean two-wire spiral antenna," in IRE Transactions on Antennas and Propagation, vol. 8, no. 3, pp. 312-323, May 1960, doi: 10.1109/TAP.1960.1144840

J. Kaiser introduced in 1960 equally excited two oppositely sensed Archimedean wire spiral antennas. He demonstrated that such a pair of wires (called “doublet”) can be used to generate a linearly polarized field in which the direction of polarization and phase are controlled by rotation of the spiral radiators. This work has been quite influential in the design of scanning arrays of circularly polarized antennas through mechanical (or equivalent electronic) element rotation.

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Years 1962-1971

Yee 1966

K. Yee, "Numerical solution of initial boundary value problems involving maxwell's equations in isotropic media," in IEEE Transactions on Antennas and Propagation, vol. 14, no. 3, pp. 302-307, May 1966, doi: 10.1109/TAP.1966.1138693

This classic paper introduced the use of the finite difference time domain (FDTD) method for solving Maxwell’s equations. The introduced discretization unit cell, now commonly referred to as the "Yee’s Cell" is almost synonymous to the application of the FDTD to EM forward problems.
With almost 9K citations, this paper is nowadays the second top cited publication of all times of the IEEE Transactions on Antennas and Propagation.

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Harrington 1971

R. Harrington and J. Mautz, "Theory of characteristic modes for conducting bodies," in IEEE Transactions on Antennas and Propagation, vol. 19, no. 5, pp. 622-628, September 1971, doi: 10.1109/TAP.1971.1139999

Back in 1971, R. F. Harrington and J. R. Mautz developed a theory of characteristic modes applied to conducting bodies based on the Method of Moments. This work has proven significant in recent years for the systematic design of compact chassis antennas in cellphones and other wireless devices.

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Harrington 1971

A. Moffet, "Minimum-redundancy linear arrays," in IEEE Transactions on Antennas and Propagation, vol. 16, no. 2, pp. 172-175, March 1968, doi: 10.1109/TAP.1968.1139138.

In his work from 1968, A. Moffet described a class of sparse (“minimum-redundancy”) linear arrays achieving maximum resolution for a given number of elements by reducing the number of redundant spacings present in the layout. Later, his work has found application in interferometric sensing and it became quite relevant to recent works on MIMO radar systems.

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Years 1972-1981

Klein 1977

L. Klein and C. Swift, “An improved model for the dielectric constant of sea water at microwave frequencies,” IEEE Transactions on Antennas and Propagation, vol. 25, no. 1, pp. 104-111, Jan. 1977, doi: 10.1109/TAP.1977.1141539.

Back in 1977 the work from L. Klein and C. T. Swift introduced an improved model for the dielectric constant of sea water yielding an accuracy of at least 0.3 [K] in brightness temperature for undisturbed seas at frequencies below X-band.

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Ludwig 1973

A. Ludwig, "The definition of cross polarization," in IEEE Transactions on Antennas and Propagation, vol. 21, no. 1, pp. 116-119, January 1973, doi: 10.1109/TAP.1973.1140406.

This very popular work by A. Ludwig published in 1973 represents a milestone in the complex task of having a commonly-agreed definition of (cross-)polarization in antenna measurements. His three definitions are nowadays widely adopted in both numerical and experimental far-field probing setups.

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Jakeman 1976

E. Jakeman and P. Pusey, "A model for non-Rayleigh sea echo," in IEEE Transactions on Antennas and Propagation, vol. 24, no. 6, pp. 806-814, November 1976, doi: 10.1109/TAP.1976.1141451.

E. Jakeman and P. N. Pusey proposed in 1976 a mathematical model for non-Rayleigh microwave sea echo explicitly describing the dependence of statistical properties of the radar cross section (RCS) on the area of sea surface illuminated by a microwave radar.

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Years 1982-1991

Schmidt 1986

R. Schmidt, "Multiple emitter location and signal parameter estimation," in IEEE Transactions on Antennas and Propagation, vol. 34, no. 3, pp. 276-280, March 1986, doi: 10.1109/TAP.1986.1143830.

This work by R. O. Schmidt addressed in 1986 the problem of sensors with arbitrary locations and arbitrary directional characteristics (gain/phase/polarization) in a noise interference environment. Procedures were introduced based on the multiple signal classification (MUSIC) algorithm to provide asymptotically unbiased estimates of (i) number of incident wave-fronts, (ii) directions of arrival (DOAs), (iii) strengths and cross correlations among the incident wave-forms, and (iv) noise/interference strength.
This paper is the most cited work of all times in the history of the IEEE Transactions on Antennas and Propagation.

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Rao 1982

S. Rao, D. Wilton and A. Glisson, "Electromagnetic scattering by surfaces of arbitrary shape," in IEEE Transactions on Antennas and Propagation, vol. 30, no. 3, pp. 409-418, May 1982, doi: 10.1109/TAP.1982.1142818.

This classic 1982 paper by S. Rao introduced a set of special subdomain-type basis functions defined on pairs of adjacent triangular patches to yield a current representation free of line or point charges at subdomain boundaries in the MoM. These basis functions are nowadays widely known as the Rao-Wilton-Glisson (RWG) basis functions.
Currently, this paper is the third most cited work of all times of this Journal.

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Griffiths 1982

L. Griffiths and C. Jim, "An alternative approach to linearly constrained adaptive beamforming," in IEEE Transactions on Antennas and Propagation, vol. 30, no. 1, pp. 27-34, January 1982, doi: 10.1109/TAP.1982.1142739.

This 1982 work by L. J. Griffiths and C. W. Jim introduced an alternative approach to linearly constrained adaptive beam-forming. In their paper, the authors presented a beam-forming structure to implement a wide variety of linearly constrained adaptive array processors, suitable for arrays which have been time-delay steered. Their adaptive array was demonstrated to be very versatile and capable of performing side-lobe canceling (among other desirable features).

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Years 1992-2001

Gedney 1996

S. D. Gedney, "An anisotropic perfectly matched layer-absorbing medium for the truncation of FDTD lattices," in IEEE Transactions on Antennas and Propagation, vol. 44, no. 12, pp. 1630-1639, Dec. 1996, doi: 10.1109/8.546249.

S. D. Gedney introduced in his paper from 1996 a perfectly matched layer (PML) absorbing medium composed of a uni-axial anisotropic layer for the truncation of FDTD lattices.

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Pozar 1997

D. M. Pozar, S. D. Targonski and H. D. Syrigos, "Design of millimeter wave microstrip reflectarrays," in IEEE Transactions on Antennas and Propagation, vol. 45, no. 2, pp. 287-296, Feb. 1997, doi: 10.1109/8.560348.

Back in 1997, M. Pozar, S. D. Targonski, and H. D. Syrigos introduced the theoretical modeling and practical design of millimeter-wave reflectarrays using microstrip patch elements of variable size. The critical parameters of millimeter wave reflectarray design, such as aperture efficiency, phase errors, losses, and bandwidth were also discussed, besides an experimental assessment of four reflectarray examples at 28 GHz and 77 GHz.

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Haupt 1994

R. L. Haupt, "Thinned arrays using genetic algorithms," in IEEE Transactions on Antennas and Propagation, vol. 42, no. 7, pp. 993-999, July 1994, doi: 10.1109/8.299602.

This paper by R. L. Haupt from 1994 presented how to optimally thin large arrays using genetic algorithms (GAs). It demonstrated that the GA can effectively determine which elements are turned off in a periodic array to yield the lowest maximum relative sidelobe level.

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Years 2002-2011

Robinson 2004

J. Robinson and Y. Rahmat-Samii, "Particle swarm optimization in electromagnetics," in IEEE Transactions on Antennas and Propagation, vol. 52, no. 2, pp. 397-407, Feb. 2004, doi: 10.1109/TAP.2004.823969.

? OPEN ACCESS until December 31, 2023!

In 2004, this work by J. Robinson and Y. Rahmat-Samii introduced the Particle Swarm Optimization (PSO) algorithm to the IEEE Antennas and Propagation Society. Similar to the GA, the PSO is a stochastic global optimization algorithm belonging to the family of evolutionary algorithms (EAs), but more suitable to the exploration of real-valued multi-dimensional search spaces. It has been widely adopted to solve many optimization problems in electromagnetics, including antenna synthesis and inverse scattering.

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Yang 2003

Fan Yang and Y. Rahmat-Samii, "Microstrip antennas integrated with electromagnetic band-gap (EBG) structures: a low mutual coupling design for array applications," in IEEE Transactions on Antennas and Propagation, vol. 51, no. 10, pp. 2936-2946, Oct. 2003, doi: 10.1109/TAP.2003.817983.

Back in 1997, M. Pozar, S. D. Targonski, and H. D. Syrigos introduced the theoretical modeling and practical design of millimeter-wave reflectarrays using microstrip patch elements of variable size. The critical parameters of millimeter wave reflectarray design, such as aperture efficiency, phase errors, losses, and bandwidth were also discussed, besides an experimental assessment of four reflectarray examples at 28 GHz and 77 GHz.

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Feresidis 2005

A. P. Feresidis, G. Goussetis, Shenhong Wang and J. C. Vardaxoglou, "Artificial magnetic conductor surfaces and their application to low-profile high-gain planar antennas," in IEEE Transactions on Antennas and Propagation, vol. 53, no. 1, pp. 209-215, Jan. 2005, doi: 10.1109/TAP.2004.840528.

Artificial Magnetic Conductor (AMC) surfaces and their application to antennas were investigated by A. P. Feresidis et al. in this work published in 2005. Planar AMCs were used for the first time as the ground plane in a high-gain microstrip patch antenna with a partially reflective surface (PRS) as superstrate, achieving a significant reduction of the antenna profile.

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Years 2012-2022

Rappaport 2013

T. S. Rappaport, F. Gutierrez, E. Ben-Dor, J. N. Murdock, Y. Qiao and J. I. Tamir, "Broadband Millimeter-Wave Propagation Measurements and Models Using Adaptive-Beam Antennas for Outdoor Urban Cellular Communications," in IEEE Transactions on Antennas and Propagation, vol. 61, no. 4, pp. 1850-1859, April 2013, doi: 10.1109/TAP.2012.2235056.

The top cited research paper from the last decade (2012-2022) is dated 2013 and is co-authored by T. S. Rappaport et al. This article was the first to provide propagation measurements to characterize the use of millimeter waves for communications using beam steerable antennas, in both azimuth and elevation, at both transmitter and receiver locations. These measurements suggested that, in a dense urban environment, millimeter waves may work best within a micro-cell with a radius below 200 m, thus leading the way to further studies about the use of millimeter waves. The paper provided early 38 GHz radio propagation channel data for outdoor systems capable of implementing antenna beam steering. Based on this data, practical recommendations were made for base-station and receiver antenna placement and steering

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Brady 2013

J. Brady, N. Behdad and A. M. Sayeed, "Beamspace MIMO for Millimeter-Wave Communications: System Architecture, Modeling, Analysis, and Measurements," in IEEE Transactions on Antennas and Propagation, vol. 61, no. 7, pp. 3814-3827, July 2013, doi: 10.1109/TAP.2013.2254442.

This 2013 work by J. Brady et al. presented a framework for physically-accurate computational modeling and analysis of continuous aperture phased MIMO (CAP-MIMO) systems. Their paper reported measurement results on a discrete lens array (DLA)-based prototype for multi-mode line-of-sight communication. The prototype-based measurement results closely matched the theoretical predictions, validating the CAP-MIMO theory and illustrating the utility of the developed model.

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Costa 2012

F. Costa and A. Monorchio, "A Frequency Selective Radome With Wideband Absorbing Properties," in IEEE Transactions on Antennas and Propagation, vol. 60, no. 6, pp. 2740-2747, June 2012, doi: 10.1109/TAP.2012.2194640.

This work by F. Costa and A. Monorchio presented a novel design of a frequency selective radome which is able to absorb impinging EM signals above the operating band of an antenna. The proposed structure, unlike the usual low RCS radome design totally reflecting the incoming power out of the antenna operating band, provides a tangible reflectivity reduction without compromising the in-band performance.

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On International Women’s Day, Spotlighting
7+7 Women in Antennas and Propagation

By Maria Athanasiou and Konstantina S. Nikita

International Women’s Day is an opportunity for highlighting the outstanding work of women engineers across the globe who contribute in transforming the world with their incredible achievements, but are also paving the way for the next generation of women in science and technology. As reflected in the theme for the 2023 United Nations Observance of International Women’s Day “DigitALL: Innovation and technology for gender equality”, women are championing research and innovation by making remarkable contributions which have greater potential for more creative solutions that promote gender equality.

Women have played a pivotal role in the creation of critical structures and machines before the term “engineer” was coined in the 11th century. However, fields, such as engineering, have been largely kept shut from women and other underrepresented groups. Although educational institutions did not admit women until the early 1800s and restricted women’s admission only to traditionally “female” fields, this never deterred women from participating in the engineering sector and making untold contributions. Today, in high tech, women make up only 30 percent of employees, and fewer occupy engineering roles. The statistics for other underrepresented groups are even more grim. Even though a persistent gender gap is identified currently in engineering and technology, women take the lead in solving some of today’s toughest challenges. Closing the existing gender gap is considered essential to addressing the lack of diversity in technology and engineering and unlocking the full innovation potential in these fields.

To celebrate the International Women’s Day, at the IEEE Transactions on Antennas and Propagation we honor women who are paving the way in engineering sciences and within the antennas and propagation field and have contributed in transforming the field.

In this milieu, we first revisit the profiles of seven leading female figures in radio and electrical science as captured in the article entitled “Early Women of Radio and Electrical Science”, co-authored by Trevor S. Bird and Francesca Vipiana, which was published in the October 2022 issue of the IEEE Antennas and Propagation Magazine. These women made pioneering contributions in areas such as radar, radio astronomy, and mathematical tables, which have had lasting impact and allowed antennas to be designed or utilized antennas with particular characteristics.

We bridge the inspiring profiles of these pioneer women with the accomplishments and future potential of seven outstanding women engineers of today from across the antennas and propagation field, who have been recipients of the IEEE Lot Shafai Mid-Career Distinguished Achievement Award*. We highlight their work in the IEEE Transactions on Antennas and Propagation and share some brief information about them and what inspires them to advance technology.

*The IEEE Lot Shafai Mid-Career Distinguished Achievement Award has been established by the IEEE Antennas and Propagation Society to recognize the past technical accomplishments and future potential of an outstanding woman of mid-career status in the field of antennas and propagation. Eligible nominees consist of women who are members of the IEEE and are less than 41 years of age, whose prior technical accomplishments and future potential earmark them as current and future leaders in the field of antennas and propagation, as well as role models for future generations of women in the field.
Special thanks to Trevor Bird and Francesco Andriulli for allowing us to reuse content from the IEEE Antennas and Propagation Magazine.

Hertha Aryton
Florence Violet McKenzie
Elisabeth Alexander
Elisabeth Laverick
Elisabeth Audrey Killick
Irene Peden

“…it is time that we utilize the capabilities and creative talents of our women, and recognize that they constitute the missing half of our technical potential.”

Irene C. Peden
IEEE Spectrum, April 1968

Martha Martinez

“I love challenges, and engineering gives me the opportunity to solve new problems with every project. I get to contribute to new products, to improved systems, which make our lives easier. In my current position, I feel I am also contributing to make our lives safer with advanced radar technologies for cars. I also love the creative component of engineering. I get to develop something from an idea to a real-life product. This is very satisfying and motivates me every single day.”

Research by Marta published in IEEE TAP
   
Francesca Vipiana

“My main guide is the curiosity in all physical phenomena and technologies. When I was a very young student at primary and high schools, I was always asking questions to teachers and parents on “Why is it working like this?”. And then, my university choice was engineering and my questions moved to “How can I do this and improve it?”. Finally, curiosity is still what is driving my current research work toward advancements in technologies development.”

Research by Francesca published in IEEE TAP
   
Diane Titz

“I have always wanted to understand everything from the phenomena that surround us to their origins that sometimes are not primarily accessible. Throughout history that has been possible thanks to technology breakthroughs. It is then logical to me to continue in this endeavour to advance technology. The perks are that every day you get to learn new things, understand them, confront fields or associate them. This quest is unlimited and one could hope that one's contribution will serve one day.”

Research by Diane published in IEEE TAP
   
Eva Antonino

“I have been always curious about technology in general and wireless communications systems in particular. The interest of using technology to solve human problems and make the world a better place has been always inspiring my research life, as I believe that advances in technology have the potential to create new opportunities and transform entire industries. My research in antenna technology for different applications (satellite communication, radar systems, mobile communication, and wireless networks) stems from the desire to improve the performance and capabilities of modern communication systems, enable new applications, and solve real-world problems.”

Research by Eva published in IEEE TAP
   
Jasemina Simpson

“People have always been interested in understanding the unknown and in developing new tools and technologies. Although, growing up, I never imagined that I could contribute to the advancement of technology myself. I also never considered getting an advanced degree that would allow me to pursue a research career until I met my future Ph.D. advisor. His enthusiasm for advancing science was obvious, and it was this enthusiasm that motivated me to seek a professorship. Ultimately, I think I am most inspired to advance technology in order to make positive contributions to society and to help people.”

Research by Jamesina published in IEEE TAP
   
Emily Porter

“I was first inspired to work in this field because of my dad, who was always designing and building new tools to improve the convenience of everyday life. As I grew up, I experienced incredible advances in medicine and the world-changing internet and wireless revolution. Now, I want to play an active role in progressing RF and microwave medical technologies to improve the lives of the next generation. I'm excited to see what amazing technologies we can develop and eager to apply them to support patients, particularly those with previously unaddressed health conditions and challenges.”

Research by Emily published in IEEE TAP
   
Yong Mei Pan

“I am inspired by the sense of satisfaction, achievement, and self-identity brought by conducting and completing innovative research work.”

Research by Yong Mei published in IEEE TAP

Discover more articles by Yong Mei here.

Institutional Listings

A brief listing of organizations giving support to the IEEE Antennas and Propagation Society is published on the back page of the Transactions.

The IEEE Antennas and Propagation Society is grateful for the support given by the organizations listed below.

Invitation

The Society invites applications for Institutional Listings from other firms interested in the field of Antennas and Propagation.

Benefits

Organizations providing Institutional Listings will receive:

  • Listings on the back page the Transactions.
  • Listing on the AP Transactions web site.
  • Listing in the Antennas & Propagation Magazine when space is available.
  • Mailed copies of the Transactions in which the Institutional Listings appear.
  • Recognition from the Society with a plaque after Listing for 3 years (commencing from 2005).

Charge

The charge for an Institutional Listing is $75 per issue, $375 for six consecutive issues, and $725 for 12 issues. Agency fee is not granted on Institutional Listings.

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Applications for Institutional Listings, should be sent to the Editor-in-Chief (This email address is being protected from spambots. You need JavaScript enabled to view it.) or Susan Schneiderman (This email address is being protected from spambots. You need JavaScript enabled to view it.), IEEE Media, 445 Hoes Lane, Piscataway, NJ 08854, USA.

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