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Welcome to the Phased Array Antenna Research and Development Group (PAARD) webpage. PAARD's research specializes in active phased array antenna design and radar calibration. Our research group puts the emphasis on high performance antenna arrays for radar applications for microwave and mmWave. bands. Low-profile and low-cost active array antennas in brick and tile architectures using the latest technology in CMOS and GaN are under development for conventional and new radar architectures for multifunction radar systems. The PAARD is housed at the Advanced Radar Research Center (ARRC) and in the College of Electrical and Computer Engineering of The University of Oklahoma.

RESEARCH INTEREST

Research Interests
  • Conventional and hybrid array antenna archit. for active dual-polarized phased  array radars.

  • High-performance dual-polarized antenna elements.

  • Broadband antenna arrays.

  • Multiband & Reconfigurable arrays.

  • Artificial dielectric materials.

  • Radome design

  • Smart beam-forming antenna arrays

  • 5G massive mimo active arrays

  • Millimiter (30 GHz to 110 GHz) antennas.

  • Sub-terahertz (110 GHz to 500 GHz)

  • EM modeling and material characterization.

  • Radome design, modeling and testing.

  • NF active antenna array calibration.

  • Tile and brick Transmit and Receive (T/R) modules.

  • Low-cost and high-integration active antenna arrays.

  • Antenna measurements and radar calibration. Using both conventional and UAV based techniques.

  • Fully automated characterization of antenna arrays.

  • Ultra compact HF, LHF and UHF antennas

  • Material characterization (Free-space method , 10 GHz 110 GHz)

  • Customized measurement systems (NF-planar, Cylyndrical, Compact range, etc.)

LATEST NEWS

Quote Background

As mist becomes fog, the mice begin to scurry towards the tall, yellowing grass just as denial seeps into humanity. As such, the most significant challenge usually comes from the individuals that form society themselves when they refuse to see that a problem exists in the first place. 

-- 

Andrea Salazar  (Jan. 1, 2018)

Congrats to Alexis Oblitas

Big shoutout to Alexis Oblitas from ARRC at OU, who scooped up a fancy paper award at the IEEE Antenna Measurements Techniques (AMTA) symposium! Alexis snagged a stellar 3rd place for his brainy research paper titled “Enhancing On-Chip Antenna mmWave Calibration: A Hybrid Multi-Axis Scanner Enabling Near-Field and Far-Field Measurements for Over-the-Air Calibration”. Alexis is doing EM applied research at the PAARD research team at ARRC/OU. Way to go, Alexis!

Posted on Oct. 10, 2023 2:02 pm CDT

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Congrats to Dr. Salazar 

Dr. Salazar has been chosen as the Technical Coordinator for 46th​ ​Annual​ ​Meeting​ ​and​ ​Symposium​ ​of​ ​the​ ​Antenna ​​Measurement​ ​Techniques Association (AMTA), and have also been elected to the AMTA Board of Directors! It's an honor to join forces with such a dedicated community. With AMTA's rich history of fostering advancements in electromagnetic measurement technologies alongside IEEE, I'm looking forward to contributing to this legacy and the upcoming AMTA 2024 Symposium. Thanks to all AMTA members who supported my candidacy 🎉 

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Posted on Oct. 10, 2023 2:02 pm CDT

Congrats to the new Drs. Segales, Ccoillo, and Jehangir and MS. Burdi

🎓💫 Congratulations to our brilliant new ARRC/PAARD doctors and master's graduates! 🎉 Your hard work, dedication, and perseverance have paid off, and we couldn't be prouder of your remarkable achievements. 🌟👏 You've conquered countless challenges and have emerged as shining stars in your respective fields. This milestone is just the beginning of an exciting journey ahead, where you'll make a profound impact on the world. 🌍✨ We wish you continued success and fulfillment in all your future endeavors

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Posted on MAY. 13, 2023 10:02pm CDT

"Hasta la vista  Johan" see you in Fall !!! 

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Posted on March. 28, 2023 5:23 pm CDT

Welcome to Harrison Statham and Ryan Jones for joining PAARD team as new MS Grad. Students

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Harrison Statham completed his B.S. in Electrical Engineering at The Georgia Institute of Technology in 2018. Since completing his undergraduate degree, Harrison has been employed by Keysight Technologies in Santa Rosa, California. While working for Keysight, Harrison has worked on next generation 5G mmWave transceiver systems and early 6G receivers and sources.

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Ryan Jones completed his B.S. in Electrical Engineering at OU in 2006. Since then has been employed as a civilian by the United States Air Force at Tinker AFB, Oklahoma. While working for the Air Force, Ryan worked with automated testing for depot level avionics repair, developed software and analysis tools for an airborne AESA Radar System, and served as an Avionics Engineer in a system program office where he is currently the Avionics Integrity Program Technical Expert and an engineering team lead.

Posted on March. 03, 2023 9:45 pm CDT

Welcome to Johan Oblitas for joining as a new PAARD Intern 

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Johan Oblitas was born in Lima, Peru in 2002. He is an undergraduate Systems Engineering student at the University of Lima where most of his activities and knowledge are related to web development; programming in languages such as Java, Python, Javascript and C++; database management; data analysis and process management. He is currently doing an internship at the Advanced Radar Research Center, where he is working for the Phased Array Antenna Research and Development Group (PAARD) in the area of applying electromagnetics and remote sensing.

Posted on March. 03, 2023 8:23 pm CDT

Congratulations to the two new Doctors.

There is nothing more satisfying for a professor than to see their students turn their dreams into reality. Please join me in congratulating Nim Ccoillo Ramos and Antonio (Tony) Segalés for their successful Ph.D. defense. Both of you did an amazing job. Congratulations Dr. Segalés and Dr. Ccoillo! I am very proud of both of you.

 

Posted on  Dec. 02, 2022  9:19 pm CDT

Congratulations Antonio and Nim for their Ph.D. dissertation defenses

Congratulations to Dr.  Salazar

Doctor Jorge Salazar honored by Universidad Antenor Orrego at November 25 2022

Jorge Salazar-Cerreño, Ph.D. was honored in Peru on Nov. 25 by the Universidad Antenor Orrego, where he earned his bachelor’s degree in electrical engineering in 1994, only this time he was presented the Doctor Honoris Causa. This honorary degree distinction is awarded to an individual who has made significant contributions to their field.

Posted on Nov. 25. 2022, 11:00 p.m. CDT

 

PAARD Team in February 2022

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Congratulations to Jorge Salazar for the 2 important awards at OU

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Awarded with the 2022 Annual Award for excellence in Research Grants

Awarded with the 2022 Outstanding Faculty of the year

Posted on  Aug. 21 2022  12:30 am CDT

Welcome to Marcelo Moreno for joining as a new PAARD MS Grad. 

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Marcelo F. Moreno Marin was born in La Paz, Bolivia in 1992. He received a B.S. degree in Electronics from the Universidad Privada de Santa Cruz in 2014, a Specialist degree in Embedded Systems from the Universidad de Buenos Aires in 2017 and he is currently working towards his M.S. in Electrical and Computer Engineering at the University of Oklahoma. During his life as an engineer, he worked in several sectors of the industry from his natal country developing different solutions for control and automation. He establishes his own company in 2020 doing work in the home automation area and designing custom electronic systems for companies abroad. He is currently a Graduate Research Assistant working on a project aimed at developing a system with new technologies, power-efficient and low-cost for variable speed signals on Oklahoma highways. His research interests include embedded systems, PCB design, and product design and manufacture.

Posted on Aug. 22 2022 5:45 pm CDT

Welcome to new PAARD MS Grad. Students

Sergio Rodriguez

Alexis Oblitas

Mariel Avalos

Elizabeth Joyce

Felipe Moncada

Khuda Burdi

Posted on  Aug. 21 2022  12:30 am CDT

Congratulations to Syed and Nim for their Conference Papers in 2022

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Posted on  Aug. 21 2022  08:30 am CDT

3 New PAR journals on the Bulletin of Atmospheric Science (BAMS)

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Posted on  Aug. 21 2022  08:30 am CDT

01

Palmer, R., et. al. (2022). A Primer on Phased Array Radar Technology for the Atmospheric Sciences, Bulletin of the American Meteorological Society (published online ahead of print 2022). Retrieved Aug 21, 2022. Link

02

Kollias, P., et al  (2022). Science Applications of Phased Array Radars, Bulletin of the American Meteorological Society (published online ahead of print 2021). Retrieved Aug 21, 2022. Link

03

Weber, M., et al. (2021). Towards the Next Generation Operational Meteorological Radar, Bulletin of the American Meteorological Society (published online ahead of print 2021). Retrieved Aug 21, 2022. Link

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Congratulations to Jorge Salazar and ARRC/PAARD team for the 3 new publications at IEEE 

First place at the

2021 IEEE Industrial Engineering Paper Award on Antenna Measurements and Applications

  Posted on  Nov. 29, 2021  5:45 am CDT

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Congratulations to Antonio Segales for a new Publication on the EGU Atmospheric Measurements Technique

                                                  Posted on  June 11, 2021  11:31 am CDT

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Welcome Antonio Segales and Jorge Alva in joining PAARD team

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Tony, an expert in UAV platforms joined PAARD team to complete his doctoral degree in a research in 3D wind estimation method for UAS in conjunction with the CopterSonde wind vane algorithm for vertical weather profiling.

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Jorge Alva, instructor at the Universidad Antenor Orrego (Peru), expert in embedded systems, is joining OU/PAARD team to persue his doctoral degree in ECE.

Congratulations to Nafati and PAARD team for a new Publication on the IEEE Open Access

                                                  Posted on  June 11, 2021  11:31 am CDT

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Congratulations to Nim Ccoillo and PAARD team for a new Publication on the Transaction on Antennas and Propagation (TAP)

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Posted on  June 11, 2021  11:31 am CDT

Welcome to Elizabeth Joyce and Khuda Burdi

                                                  Posted on  June 1, 2021  10:21 am CDT

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Elizabeth and Khuda joined to PAARD team for summer internship program. Both are working in microwave and mm-wave antenna metrology.

PAARD/ARRC team implemented a state-of-the-art mmWave/Sub-terahertz Lab. at OU. The new Lab. enables research up to 300 GHz, that includes: Material characterization, antenna S-parameters, Near-field and Far-field antenna test. 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Posted on  May 15, 2021  10:00 pm CDT

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Congratulations to Nim Ccoillo and Syed Jehangir

Posted on  May 11, 2021  10:21 am CDT

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Gallogly College of Engineering, it is my pleasure to inform you that you have been selected to receive the William H. Barkow Scholarship for the 2021-2022 academic year. This award of $3500 recognizes your outstanding academic achievements

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Gallogly College of Engineering, it is my pleasure to inform you that you have been selected to receive the William H. Barkow Scholarship for the 2021-2022 academic year. This award of $3500 recognizes your outstanding academic achievements

Congratulations to the new ARRC Ph.D. Students !!!

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Congratulations to my PAARD Ph.D.'s !!!

My heartfelt congratulation to Dr. Jose, Dr. Arturo, DR. Rodrigo, Dr. Javier. I am so very proud of all your accomplishments and the obstacles you have faced to get there!!!

 

Posted on  May 15, 2021  10:00 pm CDT

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Congratulations to my PAARD  Ph.D.'s !!!

My heartfelt congratulation to Dr. Jose, Dr. Arturo, DR. Rodrigo, Dr. Javier. I am so very proud of all your accomplishments and the obstacles you have faced to get there!!!

 

Posted on  May 15, 2021  10:00 pm CDT

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Congratulations to Kevin!!!

 

Congratulation Kevin, I am glad to see you and meet your beautiful family.

Posted on  May. 16, 2021  12:30 pm CDT

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Congratulations to Nafati Aboserwal !!!


​Recognition and Appreciation given by the IEEE Antenna and Propagation Society for exceptional performance as a reviewer of the IEEE Transactions on Antennas and Propagation.

 

Posted on  March. 1, 2021  9:00 am CDT

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Alexis Oblitas a PAARD/ARRC/OU Intern during COVID crisis



Alexis Oblitas a PARRD/ARRC undergrad intern of the University of Oklahoma complete successfully a fully-automated RF scanner for active phased array antenna test and calibration.  Alexis a Peruvian student in Electrical Engineering from "La Universidad Peruana de Ciencias Aplicadas (UPC)",  arrived at Norman Oklahoma, on Jan. 6th of  2020 to be an intern working under the supervision of Dr. Jorge Salazar in research related to phased array antenna technology.  Due to the COVID crisis, Alexis stays at OU for almost 12 months. During this time, Alexis did an extraordinary job integrating sensors with graphical interfaces. The video below corresponds to his last project performed from Sept.- Dec. 2020. He integrated and active phased array antenna, and developed and an RF scanner using a robotic arm and VNA to test and calibrate the active phased array antenna. Great job Alexis!

 

Posted on  Jan. 12, 2021  9:00 am CDT

2020 "the COVID year" was not easy at all. Our lab was closed for months, and working from home was challenging. Students kept working day and night to get work done and move on to the next steps of their careers. There is not more gratification for a professor than to see students finishing one of the biggest milestones in their lives. Five of my students graduated successfully this year. Congratulations!!! I'm very proud of all of you!!!

 

Posted on  Dec. 09, 2020  9:12 pm CDT

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Congratulations Dr. Umeyama.

Congratulation to Arturo Umeyama for defending successfully his Ph.D presentation. His research is in phased array metrology and calibration will make a huge difference in the PAR deployment.

Posted on  Dec. 09, 2020  9:19 pm CDT

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Congratulations to Nim Ccoillo Ramos now a Ph.D Canditate

Congratulation to Nim for for defending successfully his qualify exam. PAARD team are very proud of your performance.

Posted on  Dec. 09, 2020  9:19 pm CDT

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Today, Nov 14 ARRC UAV team make amazing progress measuring antennas at high wind speed (35-38mph)​. Congrattukations to the all team. Arturo, Tony, Brent, Caleb, Alexis and Jorge

 

Posted on  Nov.  14, 2020  04:10 pm CDT

Lab. session of 2020 Phased Array Antenna class at OU. Proud of my Lab. session of 2020 Phased Array Antenna class at the University of Oklahoma (OU). In this class, six active phased array antenna modules in S-band were developed by the PAAARD team. Each module has a dual-polarized S-band passive array, T/R modules, beam-former a 2-port VNA, RF probes, RF cables, cal-kit, etc. The students have the opportunity to learn how to measure mutual coupling and calibrate in near-field the array excitation using fundamental concepts learned during class. Later the validate calibration in NF or FF chamber at the RIL.

 

Posted on Nov. 11, 2020, 04:10 pm CD

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Congratulations to Zeeshan  on this outstanding new publication in IEEE Access. 

Posted on  Nov.  12, 2020  04:10 pm CDT

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Congratulations to Syed on this outstanding new publication in IEEE Access. 

Posted on Nov.  12, 2020. 04:10 pm CDT

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More Congratulations for Arturo .... yeaaah!!!

I would like to congratulate to Arturo Umeyama for the WNI Scholarship award. Arturo is an outstanding graduate student that has demonstrated exceptional potential as a researcher. The technical skills he honed during the past four years have brought significant value to our team.... well deserved award!

Posted on Nov. 12, 2020. 1: 00 am CDT.

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Congratulations Arturo for the best Dissertation Award !

ECE/ARRC graduate student Arturo Umeyama has received $5000 Gallogly College of Engineering Dissertation of Excellence Awards. The award recognizes Ph.D. students who have achieved outstanding research results while encouraging them to complete their dissertations with excellence.  Arturo is advised by Dr. Jorge Salazar, and his dissertation is focused on new in-situ UAV instrumentation for phased array radar calibration. Congratulations Artur on this outstanding achievement!.

Posted on  Sep.  21, 2020  10:10 am CDT

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Congratulations Arturo for the 2 new Journals

Congratulations to Arturo on this outstanding new publication in IEEE Access. 

Posted on  Sep.  21, 2020  10:10 am CDT

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I am very proud to introduce to Dr. Javier Alejandro Ortiz, a brand new Ph.D. in our antenna and radar community. His research is in  phased array antenna technology addressing a very important challenge for dual-polarized radars. Yesterday, Javier defended successfully his dissertation titled "The Impact of Edge Diffraction in Dual-Polarized Phased Array Antennas." Congratulations Dr. Ortiz, PAARD team will miss you. Good luck with your new job at Raytheon.

 

Posted on Saturday,  June 16. th , 2020  01:10 pm CDT

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I am very proud to share Kevin Constien defended successfully his MS degree in Electrical Engineering at ECE/OU. His research is in phased array antenna technology addressing a fundamental research for dual-polarized radars.  Congratulations Kevin, PAARD team will miss you. Good luck with your new job at Raytheon.

 

Posted on Saturday,  July 31st, 2020  03:55 pm CDT

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Congratulations to Tom Brachtenbach for great MS-ECE Thesis defense...Tom, PAARD team will miss you a lot ...!!! good luck in Amazon.

 

Posted on Saturday,  May 2nd, 2020  01:10 pm CDT

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Congratulations to Dr. Rodrigo Lebron Garcia for outstanding Ph.D. defense...you made me and the all PAARD team very proud! ... well done Rodrigo. CongratulationS for your new position at METAWAVE 

 

Posted on Saturday,   March. 21th , 2020  03:12 pm CDT

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