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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. 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

  • Conventional and hybrid array antenna architectures for active dual-polarized phased  array radars.

  • High-performance dual-polarized antenna elements.

  • Broadband antenna arrays.

  • Multiband & Reconfigurable arrays.

  • Artificial dielectric materials.

  • Smart beam-forming antenna arrays

  • 5G massive mimo active arrays

  • Millimiter (Ka- to W-band) antennas.

  • 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.

LATEST NEWS

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

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

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)

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


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

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

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

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

Congratulations Dr. Umeyama.

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

 defense

Posted on  Dec. 09, 2020  9:19 pm CDT

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 performnace

Posted on  Dec. 09, 2020  9:19 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

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

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

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

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

More Congratulations for Arturo .... yeaaa!!!

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

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

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

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

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

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

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

Congratulations to Horus team  (R. Palmer, C. Fulton, J. Salazar, M. Yeary, H. Sigmarsson, R. Kelly, M. Mcord, J. Diaz, J. Meyer, for new Journal  publications on the Microwave Journal  

 

Posted on Saturday,   April. 12th , 2020  02:21 pm CDT

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

ARRC/GCoE graduate students Rodrigo Lebron Garcia, and Javier Ortiz have each 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.  Advised by Dr. Jorge Salazar, Rodrigo’s dissertation centers around techniques and instrumentation for active phased array calibration, and Javier’s dissertation involves the analytical modeling of the effects that diffraction have on phased array antennas with emphasis on the cross-polar patterns. Congratulations to all on this outstanding achievement!

Posted on Friday Feb 21, 2020 04:30 pm CST