33-4320-00-3000

TW4320/TW4322 Wideband GPS/GLONASS Antenna The TW4320/TW4322 is a wideband GNSS antenna covering the GPS L1, GLONASS L1 and SBAS (WAAS, EGNOS & MSAS) frequency bands (1575 to 1606 MHz). It features a small patch element with 40% wider bandwidth than previously available in this format. Unlike its competitors, both GPS-L1 and GLONASS signals are included in the 1dB received power bandwidth. The TW4320/TW4322 has a two stage Low Noise Amplifier with a mid-section SAW. A tight pre-filter is available in the TW4322 to protect against saturation by high level subharmonics and L-Band signals. Even with the wider bandwidth, the TW4320/TW4322 antenna is the smallest high performance antennas available. It is housed in a compact IP67 magnetic mount enclosure. Applications • • • • Cost Sensitive Mission Critical Positioning Military & Security Covert surveillance Fleet Management & Asset Tracking Features • • • • • • • • • 40% wider bandwidth, small footprint Axial ratio: 6 dB Typ. (GPS & GLONASS) Low noise LNA: 1 dB High rejection mid-section SAW filter Available Pre-filter (TW4322) High gain: 28 dB typ. Wide voltage input range: 2.5 to 16 VDC IP67 weather proof housing Low Power: 9mA typ. at 2.3Vcc min. Benefits • • • • • • • 1dB Bandwidth Includes GPS-L1 & GLONASS Excellent multipath rejection improved GNSS reliability Excellent signal to noise ratio RoHS compliant Ideal for harsh environments Excellent out of band signal rejection TW4320/TW4322 Wideband GPS/GLONASS Antenna Specifications Antenna Architecture 1 dB radiated power bandwidth 10dB Return Loss Bandwidth Antenna Gain (with 100mm ground plane) Axial Ratio (over full bandwidth) Polarization Wideband Single Feed Patch 31 MHz 45MHz 4.5 dBic 6 dB typical, 8dB Maximum. RHCP Electrical Architecture Filtered LNA Frequency Bandwidth Gain Gain flatness Out-of-Band Rejection Out-of-Band Rejection VSWR (at LNA output) Noise Figure Supply Voltage Range (over coaxial cable) Supply Current ESD Circuit Protection LNA stage 1 -> SAW filter-> LNA stage 2 (TW4320) SAW Pre-filter ->LNA stage 1 -> SAW filter-> LNA stage 2 (TW4322) 1574 to 1606 MHz 28dB min., 1575.42 to 1606 MHz +/- 2 dB, 1575 to 1606 MHz 32 dB (TW4320) >50dB (TW4322) 25 dB >50dB >1640 MHz >35 dB >70dB