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TW3805 GPSL1/L2/GLONASSG1/G2天線

商家：Advanced Information Technology Co.,Ltd[商鋪]
電話：15017636372
郵箱：sales@aitcl.com
價格：面議

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產(chǎn)品詳情

品牌名稱：: Tallysman

雙饋雙頻GPS L1 & L2 & GLonASS G1 & G2 OEM天線，特別為高精度雙頻定位OEM打造。
GPS L2 (1226.6MHz), GLonASS G2 (1248MHz 中心頻率), GPS L1/WAAS/EGNOS/MSAS (1575.42MHz) 和 GLonASS G1 (1602MHz, 中心頻率)。

The TW3805 features a precision tuned, circular stacked patch element with dual feeds. The two orthogonal feeds are combined in a hybrid combiner and the combined signal is band-split in a diplexer for pre-filtering prior to amplification in separate Low Noise Amplifiers (LNAs) for each band.

The TW3805 also offers a tightly grouped phase center over elevation angles from zenith to 0 Degrees (horizon).

The OEM TW3805 is supplied with a standard 60mm diameter circular ground plane, with a coaxial cable terminated with a connector (right angle MCX is shown in the drawing). Mounting holes are provided for attachment to larger ground planes. Custom tuning and ground plane options may be available, depending on purchase level commitment.

Applications	Features	Benefits
Anti-Jamming GPS Mission Critical GPS Timing Military & Security Network Timing and Synchronisation Very low Noise LNA, <2 dB Axial ratio: 1dB typ, at zenith. Mid range LNA gain: 35 dB typ. Low current: 25 mA typ. ESD circuit protection: 15 KV Wide voltage input range: +2.5 to 16 VDC Ideal for L1/L2 RTK surveying systems Great multipath rejection Increased system accuracy Great signal to noise ratio RoHS compliant

Specifications

Vcc = 3V, over full bandwidth, T=25°C

Antenna
Patch Architecture	Circular, Dual Feed, Dual Stacked Patch
Gain (100mm ground plane), 1227.6-1246MHz	3 dBic Min at Zenith on 100mm Ground Plane
(100mm ground plane), 1575.42MH-1606MHz	4.5 dBic Min at Zenith on 100mm Ground Plane
Axial Ratio, over full bandwidth, both L1 & L2	<3 dB at 90°
L2, 1dB Bandwidth,	1227MHz-1250MHz
L1, 1dB Bandwidth,	1575MHz–1606MHz
Polarization	RHCP, L1 and L2

Electrical
Bandwidth at L2	1213MHz-1261MHz (Filter bandwidth)
Bandwidth at L1	1571MHz-1614MHz (Filter bandwidth)
Overall LNA Gain	35dB typ, 32 dB min, each of L1 and L2 Bands,
Gain Variation with Temperature.	3dB over operational temperature range
LNA Noise Figure	2dB max at 25°C
VSWR (at LNA input)	<1.5:1
Supply Voltage Range	+2.5 to 16 VDC nominal, up to 50mV p-p ripple
EMI Immunity	50V/Meter, excepting L1+/-100MHz and L2 +/-100MHz
Supply Current	25mA typ. at 25°C.
ESD Circuit Protection	15 KV air discharge
Out-of-Band Rejection: L1	<1500 MHz >50 dB <1550 MHz >36 dB >1640 MHz >60 dB
Out-of-Band Rejection: L2	<1184 MHz >50 dB <1200 MHz >30 dB >1284 MHz >32 dB

Mechanicals & Environmental
Mechanical Size	60mm diameter, 0.75mm thick, see mechanical drawing
Operating Temp. Range	-40 to +85 °C
Weight	150 g
Attachment Method	Through hole screws in ground plane
Environmental	RoHS compliant
Shock	Vertical axis: 50 G, other axes: 30 G
Vibration	3 axis, sweep = 15 min, 10 to 200 Hz sweep: 3 G
Warranty	One year, parts and labour

Ordering Information
TW3805	32-3805-xx-yyyy-zz
Connector: xx	00=SMA male, 01=TNC male, 02=MCX male, 03=MMCX male, 04=SMB male 05=MCX right angle male, 06=MMCX right angle male, 07=SMA female, 08 = H.FL (call for pricing) 09=U.FL, 10=SMA R/A (add $2.95 to unit price), 11=Reverse polarity SMA (add $5.00 to unit price)
Cable length:	yyyy = cable length in mm
Custom Tuning:	zz = Assigned by Tallysman