JEM Engineering will remain operational during the COVID-19 pandemic outbreak as we are part of the Defense Industrial Base and critical to US Military requirements. Now, more than ever, we reassure our commitment to the American nation, as it is expressed in our mission. JEM Engineering is an antenna engineering company devoted to designing, rapid prototyping, manufacture, and test RF systems and subsystems.

We are taking steps to ensure the safety of our employees, their families, and surrounding community. We ask all customers and vendors to hold virtual meetings to reduce the risk of the virus spread.

Despite the continued spread of COVID-19 which has represented various challenges, we are devoted to remaining on duty to satisfy the needs and expectations of our customers. If you have any questions, please contact our sales department at


JEM Engineering is a world class supplier of antenna and antenna systems for military and commercial applications.


We offer a variety of existing, production-ready, novel antenna products, which can be quickly tailored to meet your specific needs.


On the cutting edge of antenna and RF technologies, we strive to improve and develop new technology and methodologies.


We house multiple RF test chambers. Our testing capabilities not only facilitate the design process, but also validate your product.



Concealed Antennas


We specialize in low-profile, ultra-wideband receive antennas with mounting capability on stationary locations, or on vehicles. 


Our extensive product line includes antennas covering the frequency spectrum from 2 MHz to 40 GHz, including a number of HF, UHF, and VHF antennas designed specifically for airborne platforms.

Flight Qualified Antenna

vehicle mounted hero antenna - JEM Engineering


Our extremely rugged and durable vehicle-mounted antennas are specifically designed for multi-use operations.


For the past 15 years, we have designed and built a wide range of products for signal intelligence (SIGINT) and Intelligence Surveillance Reconnaissance (ISR), and electronic intelligence (ELINT) antenna applications.

Monitoring Antenna

Portable Antenna


Our high-power handheld antennas are designed for wideband communications and deliver class-leading gain and pattern.


We develop active electronically steered arrays (AESA) for fixed‐site, vehicular, and airborne applications.


Custom Design & Development

We offer in-house rapid prototyping and testing services from a tapered antenna test facility (TATF) chamber to a spherical near-to-far-field (SNF) chamber. Our capabilities not only facilitate the design process, but also allow us to validate your product. Our design expertise include:

Broadband Antennas

Narrowband Antennas

Antenna Arrays

Genetic Antennas

Electronically Steerable Beamformers

Fixed Beamformers



How can we help? We are dedicated to being your antenna design and testing resource. If you have any questions, feel free to call us at (301) 317-1070. Our experts will be happy to assist.

Rapid RF Testing Services


JEM houses multiple RF test chambers at our facility in Laurel, MD, within easy reach of both Baltimore and Washington DC.

We understand the challenges facing antenna, microwave and communication system engineers. Also, we realize that accurate measurement of antenna electrical performance is critical.

Our customers have the advantage of working with our knowledgeable and experienced RF technicians and engineers, who provide guidance and support to the testing experience, as well as assist with data analysis and interpretation.

  • Testing Services from 100 MHz to 40MHz
  • Near- and Far-Field Testing
  • Experienced On-Staff Test Engineers
  • Technical Guidance on Configuration, Data Interpretation, and Troubleshooting
  • Fastest Test Chamber Currently Available
  • Full-Sphere Data Collection




Actively Steered Array Antennas

JEM Engineering JEM develops active electronically steered arrays (AESA) for fixed‐site, vehicular, and airborne applications.

Employing patented, proprietary, and SBIR technologies, these arrays offer many features not available with other arrays.

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Antenna Development & Environmental Testing

Environmental testing is a crucial part of antenna qualification. Depending on which application(s) an antenna is to be used for, the environmental qualification standards for which it has to pass will vary.

There are a number of different standards by which an environmental test may be performed, but because JEM Engineering is a contractor for the United States Department of Defense, we adhere by defense (or “military”) standard, also known as “MIL-SPEC.” While JEM Engineering does not have the capability to perform environmental testing in-house, we work closely with our trusted partners, who handle our required MIL-SPEC tests once we’ve designed and built any necessary fixturing for them.

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Radio Frequency Technician IV

We are seeking an experienced Radio Frequency (RF) Technician to join our growing antenna engineering firm located in Laurel, MD.

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Quality Control Technician (Temp/Contract-to-Hire)

This is a temp/contract-to-hire position and we will consider taking on the successful candidate full-time after assessing their performance.

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