Ceramic Patch Antenna
Model: PA Antenna
This microwave dielectric antenna elements and its series are designed to be used for GPS device. The patch antenna with compact size incorporates a rectangular micro-strip design for GPS C/A right-hand circular polarization wave reception, featuring low RL, low Axial Ratio but high gain, etc.
Pin length and outer diameter
Length: 1.6mm (Can depend on the customer demand change, the suggestion length1.9mm & 3.0mm)
Outer diameter: 0.8mm
Structure and Material
| NO. |
Description |
Structure and Material |
| 1 |
Antenna Substrate |
Dielectric Ceramics |
| 2 |
Pin |
Copper, Tin Plated |
| 3 |
Electrode |
Ag Plated |
| 4 |
Ground Base |
Ag Plated |
| 5 |
Adhesive type |
3M |
Environment Performance
| Item |
Requirement |
Time |
| Humidity |
+40±2°C,90~95%R.H. |
96 Hours |
| Temperature Life |
+80±3°C -40±1°C |
24 Hours |
| Thermal Shock |
Cycle：-40°C 30min, +85°C 30min |
5 Cycles |
Mechanical Performance
| Item |
Requirement |
| Drop Shock |
The device dropped into the hard wooden board from the height of 30cm for 3 times each facet of the 3 dimensions of the device. |
| Vibration |
The device applied to the vibration of 10 to 55Hz with amplitude of 1.5mm for 2 hours each in X,Y and Z directions. |
Electric Specification
| Satellite frequency |
1575.42MHz |
| Polarization |
Right-hand Circular |
| V.S.W.R. |
1.5 MAX. |
| Return Loss |
-15dB MAX. |
| Axial Ratio |
5dB MAX. |
| Impedance |
50Ω |
| Model |
Center Frequency
(MHz) |
Band width
(MHz) |
VSWR |
Gain
(dBi) |
Dimension
(mm) |
Ground Plane
(mm) |
| PA25254 |
1585 |
≥10 |
≤1.5 |
4.5 |
25×25×4 |
70×70 |
| 1575 |
≥10 |
≤1.5 |
2.5 |
25×25×4 |
30×30 |
| PA25252 |
1575 |
≥8 |
≤1.5 |
2.0 |
25×25×2 |
30×30 |
| PA18184 |
1578 |
≥6 |
≤1.5 |
1.5 |
18×18×4 |
20×20 |
| PA18182 |
1580 |
≥5 |
≤1.5 |
1.0 |
18×18×2 |
20×20 |
| PA15154 |
1575 |
≥5 |
≤1.5 |
0.5 |
15×15×4 |
18×18 |
| PA12124 |
1575 |
≥5 |
≤1.5 |
-1.0 |
12×12×4 |
15×15 |
| PA10104 |
1582 |
≥5 |
≤1.5 |
-2 |
10×10×4 |
12×12 |
Number: PA-25252-1575
Antenna size: 25*25*2
Tolerance ±0.2mm
Electrical Characteristics:
| Item |
Specification |
Tolerance |
| Range of Receiving Frequency |
1575 |
±2.5 |
| Center Frequency @ 30*30mm Ground Plane |
1575 |
±3.0 |
| Band Width @ Return Loss ≦ -10dB |
≥ 8 |
±0.5 |
| V.S.W.R. @ Center Frequency |
≤1.5 |
±0.5 |
| Peak Gain @ 70*70mm Ground Plane |
4.0 Typical |
－－ |
| Axial ratio |
≦3 |
－－ |
| Polarization |
Right-Handed Circular |
－－ |
| Impedance |
50 |
－－ |
| Frequency Temperature Coefficient |
0±10 |
－－ |
Return Loss and Smith-chart:
Number: PA-25254-1580
Antenna size: 25*25*4
Tolerance ±0.2mm
Electrical Characteristics:
| Item |
Specification |
Tolerance |
| Range of Receiving Frequency |
1575 |
±2.5 |
| Center Frequency @ 70*70mm Ground Plane |
1580 |
±2.0 |
| Band Width @ Return Loss ≦ -10dB |
≥ 10 |
±0.5 |
| V.S.W.R. @ Center Frequency |
≤1.5 |
±0.5 |
| Peak Gain @ 70*70mm Ground Plane |
4.5 Typical |
－－ |
| Axial ratio |
≦3 |
－－ |
| Polarization |
Right-Handed Circular |
－－ |
| Impedance |
50 |
－－ |
| Frequency Temperature Coefficient |
0±10 |
－－ |
Return Loss and Smith-chart:
Number: PA-25254-1616
Antenna size: 25*25*4
Electrical Characteristics:
| Item |
Specification |
Tolerance |
| Center Frequency @ 70*70mm Ground Plane |
1616 |
±3.0 |
| Band Width @ Return Loss ≦ -10dB |
≥ 10 |
±0.5 |
| V.S.W.R. @ Center Frequency |
≤1.5 |
±0.5 |
| Peak Gain @ 70*70mm Ground Plane |
4.5 Typical |
－－ |
| Axial ratio |
≦3 |
－－ |
| Polarization |
Right-Handed Circular |
－－ |
| Impedance |
50 |
－－ |
| Frequency Temperature Coefficient |
0±10 |
－－ |
Return Loss and Smith-chart:
