I'm taking a stab at a compact wireless design.
I need to consider PCB design rules to use the chip antenna, So here's that I read article.
https://mindtribe.com/2015/01/chip-antennas/
This is real design consideration.
1. Remove the GND from the bottom of the antenna and finish with a via hole around it.
2. In addition, for chip-antenna, impedance matching is required for optimal performance.
what is impedance matching?
1)http://www.rfdh.com/bas_rf/begin/whymatch.htm
임피던스매칭을왜할까?
RF를 오래 하다보면 이런 질문이 우문처럼 들릴 수 있습니다. 하지만 경우에 따라 누군가에겐 매우 궁금한 질문이 될 수 도 있겠죠. 임피던스 매칭은 원래 당연히 해야하는 것이지, 왜 하느냐의
www.rfdh.com
2)blog.naver.com/cjsksk3113/222007551894
3. It you don't concern the communication distance of more than 100m, Optimization is not necessary,
So if we consider the cost and simple design, Don't follow whole contents. In fact, the BLE solution, which has a communication distance of about 150 meters, must include a matching network that provides impedance convergence(50ohms)
Pcb design layout example ↓
'개발정보 > HardwareDesign' 카테고리의 다른 글
| Battery Charger IC ME4057 considerations (0) | 2020.12.17 |
|---|---|
| PSR ink, Solder Mask, Paste Mask(=Metal mask) (0) | 2020.12.16 |
| OS에서 프로그램(Program), 잡(Job), 프로세스(Process), 프로세서(Processor)의 연관 관계 (0) | 2020.11.22 |
| 기계어 및 어셈블리어 실행 과정 이해 (0) | 2020.11.22 |
| 하드디스크의 용량(Capacitor) 구하기 (0) | 2020.11.22 |
댓글