CN
HOMEABOUT USINDUSTRY INFO HOW TO CLASSIFY THE GPS MODULE ANTENNA

How to classify the GPS module antenna

By sdga:NiceRF Wireless Technology Co., Ltd

GPS is a global positioning system,which is positioning and navigating by receiving satellite signals. The antenna must be used for receiving signals. What are the classifications of GPS module antenna?

 

GPS module antenna classification

1. From the polarization mode, the GPS module antenna has vertical polarization and circular polarization

In terms of performance, circular polarization works better. Therefore, except for special cases, the GPS module antenna will be recommended to use circular polarization.

 

2. From the mode of installation and placement, the GPS module antenna has internal antenna and external antenna:

The current GPS module is gradually miniaturized and integrated, so the GPS antenna is mostly installed and placed inside. The antenna must be above all metal components, antenna shell must be plated ,well grounded,and be away from EMI interference sources, such as CPU, SDRAM, SD card, crystal oscillator, DC/DC.

 

3. From the perspective of power supply, the built -in GPS antenna has active GPS antenna and passive GPS antenna

①GPS built -in passive antenna:

For example, the flat plate antenna, which is mainly a ceramic medium, most of them are square design, with a size of 25*25 to 12*12mm, the larger the area, the higher the resonance frequency. Since it doesn’t need power supply, it is called a passive antenna.

The picture shows the connection diagram of our GPS module GPS02-TD and GPS passive antenna AGPS25P-60C:

High accuracy GPS module GPS02-TD and GPS passive antenna AGPS25P-60C connection diagram

 

Silver layer:

The silver layer on the surface of the ceramic antenna can affect the antenna’s resonant frequency. The ideal frequency point is 1574.42MHz. In actual production, the frequency point can be adjusted through adjusting the shape of silver surface.

 

Ceramic chip:

The antenna performance will be directly affected by the ceramic powder quality and the sintering process. The ceramics size on the market is 25*25,18*18,15*15,12*12. The larger the area of ceramic chip, the higher the resonance frequency.

 

GPS built -in active antenna

The built-in GPS active antenna usually refers to the antenna module that needs power supply. It consists of ceramic antenna, LNA (low noise signal module), cable, and connector. The following picture shows our GPS built-in active antenna: ANT-GPS01A

GPS active antenna AGPS25A-60C

NiceRF's GPS module and GPS antenna recommendation

GPS module
Product modelGPS02-TDGPS01-TD
Features

1. Support GPS, Galileo, BDS, GLONASS four satellite systems

2. Support SBAS, QZSS

3. Support A-GNSS assisted positioning

4. Support GPS, Galileo, BDS, GLONASS single system work

5. Support dual system work

6. Support GPS/BDS/GLNOASS, GPS/Galileo/BDS three systems

7. Support GPS/Galileo/BDS/GLNOASS four system work

8. The capture sensitivity can reach -147dBm, and the tracking sensitivity can reach -163dBm

9. Support anti-interference technology

10. Power partition management, support a variety of low-power working modes

11. Continuous tracking current (3.3V power supply, use DCDC enable): 19mA@single-mode, 23mA@three-mode

12. Standby current: 25uA

13. The number of tracking channels can be configured, up to 512

14. Support power-on reset, internal integrated low-voltage reset, external reset, software reset  

1. Mini GPS module

2. Support GPS, Galileo, BDS, GLONASS four satellite systems

3. Support SBAS, QZSS

4. Support A-GNSS assisted positioning

5. Support GPS, Galileo, BDS, GLONASS single system work

6. Support dual system work

7. Support GPS/BDS/GLNOASS, GPS/Galileo/BDS three systems

8. Support GPS/Galileo/BDS/GLNOASS four system work

9. The capture sensitivity can reach -147dBm, and the tracking sensitivity can reach -163dBm

10. Support anti-interference technology

11. Power partition management, support a variety of low-power working modes

12. Continuous tracking current (3.3V power supply, use DCDC enable): 19mA@single-mode, 23mA@three-mode

13. Standby current: 25uA

14. The number of tracking channels can be configured, up to 512

15. Support power-on reset, internal integrated low-voltage reset, external reset, software reset

Product ImageLow price & High accuracy GPS module GPS02-TDMini GPS module GPS01-TD
GPS antenna
Product modelAGPS25A-60CAGPS25P-60C
TypeGPS active antennaGPS passive antenna
Product ImageGPS Antenna AGPS25A-60C Built-in Active AntennaGPS Antenna AGPS25P-60C Built-in Passive Antenna
Contact Us

 +86-755-23080616

 sales@nicerf.com

Website: https://www.nicerf.com/

Address: 309-314, 3/F, Bldg A, Hongdu business building, Zone 43, Baoan Dist, Shenzhen, China

Contact Us
Privacy Policy

Privacy Policy

· Privacy Policy

There is currently no content available


           

Email:sales@nicerf.com

Tel:+86-755-23080616

Address:309-314, 3/F, Bldg A, Hongdu business building, Zone 43, Baoan Dist, Shenzhen, China


×