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Industry News

ANTENNAS

March 1, 1999
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ANTENNAS

Dual-band Magnetic-mount Antennas
The DRM series dual-band magnetic-mount antennas are designed for the mobile antenna marketplace. The DRM 1800 cellular/PCS antenna operates in the 824 to 894 MHz and 1.85 to 1.99 GHz frequencies. The DRM 1900 GSM/DCS antenna operates in the 870 to 960 MHz and 1.71 to 1.88 GHz frequencies. These antennas are designed specifically to enhance performance of the new dual-band cellular telephones. Using a roof-mounted external antenna can increase telephone performance greatly when in-vehicle operation is required. The units can be used in conjunction with hands-free kits. The magnetic base provides for superior attachment strength in all types of environmental conditions.
Ace Antenna Co.,
Chatsworth, CA
(818) 718-1534.

ISM Ceiling-mount Patch Antenna
The Squint™ series ISM-band patch antenna features a 3.5 dBi dipole-like pattern shape and ceiling-mount design, which provides a low profile for minimum visual impact. The unit provides for reception and transmission in the 2400 to 2500 MHz frequency band. The radiation pattern offers a 55° beamwidth with the maximum directed at 45° from the horizontal plane. Gain at the horizon is 2.5 dBi. The units utilize the unique MicroAir™ air dielectric design, which eliminates losses associated with etched circuit boards and provides higher performance. SWR is 1.5 (max) on 50 W impedance. Size: 4.000" x 4.000" x 0.875". Weight: 0.27 lb.
Cushcraft Corp.,
Manchester, NH
(603) 627-7877.

7.1 - 8.5 GHz Aluminum Feeds
These aluminum feeds offer wideband (7.1 to 8.5 GHz) capabilities on the company's terrestrial microwave antennas. The feeds provide good electrical performance and mechanical reliability and are suitable for long-haul, medium-capacity, common-carrier, rural telephony and government applications. The units feature improved cross polarization of 35 dB, low SWR of 1.06, return loss of -30.7 dB, gain improvement from 0.1 to 0.5 dBi and front-to-back ratio improvements from 2 to 3 dB.
Andrew Corp.,
Orland Park, IL
(800) 255-1479, ext. 403.

INMARSAT Folding-briefcase Array Antenna
The model 9823-800 INMARSAT folding-briefcase, mini M array antenna consists of two flat panels each containing a microstrip patch array combined in a microstrip feed network. The panels are hinged together to form one antenna that can be folded for compact storage. Additional specifications include a frequency range of 1525 to 1660.5 MHz, right-hand circular polarization, gain of 17.3 dBic (min), SWR of 1.5 (max) and axial ratio of 4 dB (max). Size: 24" x 1".
Seavey Engineering Associates Inc.,
Pembroke, MA
(781) 829-4740.

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