N Female Connnector 50W BDS 4dBi GPS Mushroom Antenna
| GPS&BDS technique parameter | |
| Frequency(MHz) |
1575.42±5MHz, 1561.098±5 MHz |
| Gain(dBi) | 38±2 |
| Output VSWR | ≤ |
| Polarization | Right Hand Circular Polarization (RHCP) |
| 3dB beam width | 110±100 |
|
LNA output (1dB compression point output) |
>0dBm |
| Out of band rejection |
f0=1575.42MHz f0=1575.42MHz+30MHz 12dBc min f0=1575.42MHz+50MHz 35dBc min f0=1575.42MHz+100MHz 70dBc min f1=1561.098MHz f1=1561.098MHz-30MHz 12dBc min f1=1561.098MHz-50MHz 35dBc min f1=1561.098MHz-100MHz 70dBc min |
|
Jam rejection of large signal
|
When adding a 10dBm large signal at the 100MHz off central frequency, GPS&BDS antenna’s gain will change less than 2dB. When adding a 0dBm large signal at the 60MHz off central frequency, GPS&BDS antenna’s gain will change less than 2dB. When adding a -10dBm large signal at the 50MHz off central frequency, GPS&BDS antenna’s gain will change less than 2Db. Under all the above conditions, the GPS receiver can work normally. |
| Out impedance(W) | 50 |
| Power supply (V) | 4-5.5 |
| Power consumption (mA) | <45mA at environmental specification |
|
GPS&BDS LNA technique parameter
|
|
| Frequency (MHz) | 1575.42±5 MHz,1561.098±5 MHz |
| Gain (dBi) | 34±2 |
| Passband Ripple |
1575.42M ±1.023MHz: <1dB 1575.42M ±5MHz : <２dB 1561.098M±5MHz : <２dB |
| LNA 1dB compression point output | >0dBm |
|
Out of band rejection
|
f0=1575.42MHz f0=1575.42MHz+30MHz 12dBc min f0=1575.42MHz+50MHz 35dBc min f0=1575.42MHz+100MHz 70dBc min f1=1561.098MHz f1=1561.098MHz-30MHz 12dBc min f1=1561.098MHz-50MHz 35dBc min f1=1561.098MHz-100MHz 70dBc min
|
| Noise figure | ≤2.7dB |
| Input VSWR | ≤3:1 |
| Output VSWR | ≤2.5:1 |
GPS dielectric antenna technique parameter
Frequency:1575.42±5 MHz,1561.098±5 MHz
Gain: 4 dBi
Output VSWR:1.5 maximum
Polarization: Right Hand Circular Polarization (RHCP)
Center Frequency:1575MHz,1561.098M
Band Width: 1575.42±5 MHz,1561.098±5 MHz
Impendance: 50W
Interface requirements
RF connector with characteristic impedance of 50 ohms
Antenna port: N-F type
Reliability requirements
The reliability indicators required by GPS + BDS dual-mode antenna are as follows:
1. Lightning surge performance (Surge resistion, according to IEC61000-4-5 std . at 3kv, 1.2/50us. Output impedance 2W. of Instrument) The current is not less than 1.5KA, the sample size is ≥3pcs; after the test, the sample has no abnormal appearance and the electrical performance meets the specifications.
2. Reliability index MTBF (MTBF: Mean Time Between Failures) is greater than 100,000 hours, providing forecast reports, statistical data and failure analysis reports.
Process requirements
Lead-free. The material complies with EU RoHS environmental standards.
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