Patent Number:ZL 2011 3 0420748.4



Part number:BH-BD-3

Beidou antenna:

One. Dielectric antenna specification
1. Patch antenna size:25*25*4mm
2. Center frequency 1561mhz+/-1 MHZ
3. V. S. W. R 1.5:1
4. Band width +/-5 MHZ
5. Attenuation fo+/-100mhz>30db
6. Impendence 50 ohm
7. Peak gain >3dbic based on 7*7cm ground plane
8. Gain coverage >-4dbic at -90<0<+90(over 75% volume)
9. Polarization rhcp


Two. Lna specification
BH-BD-3

1. Lna gain(without cable) 28db typical
2. Noise figure 1.5db
3. V. S. W. R <2.0
4. Dc voltage:2.7-5.0v+/-0.5v
6. Dc current 12mA max

Three. Mechanical specification

BH-DB-2

1. Weight <70grm
2. Size .53(D)x15(H)mm
3. Cable RG174/u or RG316 3m or 5m cable
4. Connector :SMA  male ect.
5. Mounting base: screw(M16)
6. Housing black
Four. Lna

Two poles LNA.

Five. Environmental specification
1. Working temp -40~+85
2. Storage temp -40~+100
3. Vibration sine sweep 1g(0-p)10~50~10hz each axis
4. Humidity 95%~100%rh
5. Weatherproof :100%
6. Mtbf=1*10-6/pc. Hr 40+/-5 dc=5.0v+/-0.5v 2000pcs for 480