A-133 GPS Active 天線
介紹
A-133 是一個無外殼、鋁製底座的主動式GPS天線。內建電源保護電路裝置，以保護主動式低噪聲放大器（LNA）和GPS接收器與連接器連結的一端，使其免於短路的危險。A-133 是一種多功能的GPS行動天線，因此適合想要將之與自家產品互相整合的客戶。A-133 天線可專門做為多功能的整合應用，如GPS追蹤產品等等。天線為標準的電源輸入，電壓範圍從3V〜6V。如同極星所生產的其它天線一樣，A-133 符合RoHS標準，是由高品質的雙重隔離編織層的同軸電纜線和鍍銀中心導針所製做而成。
特征
A-133 GPS Active 天線 is the only innovating design 天線 with performance,
quality and a Power protection circuit built-in to protect the active LNA’s, and most
importantly the host GPS receiver down the connector end from the danger of a
SHORT circuit external 天線 (Note: GPS receiver front-end can be destroyed or
de-graded by an external GPS 天線 in an over-load or short conditions. The
A-133 is a low profile GPS active 天線 system for the next generation
multi-purpose GPS mobile 天線 products for Telematics, Fleet Management,
Navigations and AVL applications. This small print size of the 天線 design does
not reflect over-all performance, since the 天線 itself needs no ground plane aid to
deliver the L1 band small signal carrier that originates from the 24 orbiting USA
satellites located thousands of miles over-head and with the ground reception power
sensitivity at over -130dB. The A-133 天線 is also design as a standard power
input voltages in range from +3Vdc to +6Vdc with reverse polarity shutdown,
over-current sense shutdown and an EMC power line suppression. The most
important over-all design concept of the A-133 active 天線 is the complete
protections of the host sensitive GPS receiver made from any manufacturer that it
serve and can also be destroy or de-grade using an improper design 天線.
規格
| General |
| 2 Stages active LNA |
| Dual Filters, (HPF & LPF(lump element)) |
| +28dB gain |
| Dielectric Patch 天線 |
| Low Noise Low drop-out, Linear Regulator |
| GPS receiver short circuit protect |
| Low Loss RG/174 Coax cable |
| Aluminum Base/ PC+ Radome Plastic |
| Performance |
| Receiving Frequency |
L1 Band(1575MHz) |
| Output Impedance |
50 ohms |
| Polarization’s |
Right Hand Circular (RHC) |
| Bandwidth |
10dB Mhz @ -3dB point |
| VSWR |
1.5 Typical @ 1575MHz |
| Elev. Angle Coverage |
5~90 degree |
| Az. Bearing Coverage |
360 degree |
| Filtering |
Dual(BPF <10 Mhz B/W, LPF @1576 MHz Stop-band @ 1585MHz) |
| Over-all Gain |
28dB (typical including 4dB cable loss & Filters) |
| Over-all NF |
<1.8dB @fo, 2dB max. |
| LNA Characteristic |
K=>1 Un-conditionally Stable |
| RF Insertions loss |
K=>0.1dB, leakage power 100mW /1 watt input |
| Power Consumption |
11mA to 13mA (max) |
| Power Input Sensor |
Reverse Polarity Short Circuit shutdown |
| Over-Current Sensor |
Thermal Over-current shutdown >+150degreeC |
| Electrical |
| Power Input |
+3Vdc to + 6Vdc input, Auto Switching |
| Physical |
| Dimensions |
31 x 24.5 x 7mm +/-0.5mm |
| Mount |
Magnetic |
| Radome Color |
Black |
| Coax Connector |
BNC, SMA, SMB, MCX, MMCX, GT-5 |
| Coax Cable |
RG-174U double shielded 5m, Low Loss 0.7dB/m |
| Environmental |
| Operating Temperature |
-30 to + 85 degree C |
| Storage |
-40 to + 90 degree C
Open Frame with 3” Flanges & RF shield
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