1996 - 2016
BSEE - KB3UON
RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The Internet was still largely an unknown entity at the time and not much was available in the form of WYSIWYG ...
All trademarks, copyrights, patents, and other rights of ownership to images and text used on the RF Cafe website are hereby acknowledged.
My Hobby Website:
June 9, 2016 - Southwest Antennas is pleased to announce the introduction of two new S-Band RHCP & LHCP patch antennas to their growing line of body worn antenna products. These two new products offer superior directional antenna performance over existing designs available on the market, and feature a best-in-class form factor that only weighs 1.3 ounces.
Designed to be light weight and easily worn and hidden in tactical clothing, these body worn antennas are ideal for use in multi-antenna MIMO / MANET radio applications such as handheld and small form factor body worn tactical radios. The products are housed in a rugged, waterproof UV stable polycarbonate radome and are built to withstand abuse in harsh operating environments and active situations. The antenna is sealed to withstand immersion in 20-meters (65.6 ft.) of salt water for two hours when the RF connector is mated or sealed with protective end cap. The antenna's radome measures only .51 inches thick, and 2.2 inches in both length and width. A high quality and high performance stainless steel SMA(f) RF connector is used to prevent corrosion when the product is exposed to high salinity environments for extended periods of time.
Extensive field testing has shown that these antennas provides superior RF performance, ensure long range radio communication links, and provide high data rate throughput when used with MANET / MIMO self-forming, self-healing radio networks, or SISO radio systems.
The antenna's directional RHCP or LHCP radiation pattern and axial ratio below 3dB offers robust network connections and allows radio systems to connect even when users are not directly facing each other or within clear line-of-site, helping to improve system performance. Users of multi-antenna tactical radio systems can utilize one antenna on the front of the body and one antenna on the back of the body, or in other 2x2, 3x3, or 4x4 MIMO antenna configurations in combination with additional body worn or vertically polarized omni-directional antennas. The body worn antenna's circular polarization properties also vastly improves terrestrial operation in all weather conditions.
With an operating frequency range covering 2.1 - 2.5 GHz the design offers excellent performance in DHS/DOJ licensed radio spectrum or unlicensed 2.4 GHz ISM band.
The design offers +4.2 dBic peak gain when worn on the body and +4.5 dBic of peak gain when operating in free space making this product versatile and useable in both body worn and off body applications.
The horizontal beamwidth of the antenna on the body is 104 degrees and it is 110 degrees when operating in free space. On the body the vertical beamwidth is 88 degrees and it is 90 degrees when operating in free space.
In addition to body-worn applications, the free space performance of these antennas make them ideal for many field applications in point-to-point or multi-antenna mesh configurations, including fixed site infrastructure and mobile antenna applications.
Available now from Southwest Antennas, these antennas can be purchased from their website, through an inside sales representative, or through an authorized sales representative or distributor.
Also available are Southwest Antennas' complete line of body worn antenna options, covering ISM, L, S, and C bands.
About Southwest Antennas
Southwest Antennas specializes in the design and manufacture of rugged, high-performance RF and Microwave antennas, accessory products, and customized antenna solutions built for today's demanding communication environments. Founded in 2005 and headquartered in San Diego, California, Southwest Antennas offers over 1,000 standard products for broadcast video, military / defense, law enforcement, homeland security, surveillance, aerospace, oil and gas, and M2M markets.
8145 Ronson Rd., STE B
San Diego, CA 92111
Cell: (503) 789-6126
Posted June 9, 2016