Antenna testing device and antenna testing method using the same
AssigneesShenzhen Futaihong Precision Industry Co., Ltd., FIH (Hong Kong) Limited
InventorsZHAN LI, YE XIONG, GE ZHANG
Life of this patent
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Abstract
An antenna testing device includes an analyzer, a transmission probe electrically connected to the analyzer, a receiving probe electrically connected to the analyzer, and a shielded box having a cutoff frequency. The analyzer generates a test signal the frequency of which is lower than the cutoff frequency, the transmission probe receive the test signal and sends the test signal to the shielded box. The antenna is coupled with the transmission probe and generates a coupled signal, the receiving probe receives the coupled signal and sends the coupled signal to the analyzer. The analyzer analyzes the coupled signal and the test signal, the analyzer calculates the return loss of the antenna.
Claims14
An antenna testing device, comprising:
- an analyzer;
- a transmission probe electrically connected to the analyzer;
- a receiving probe electrically connected to the analyzer;
- and
- a shielded box having a cutoff frequency;
- wherein the analyzer generates a test signal the frequency of which is lower than the cutoff frequency, the transmission probe receives the test signal and sends the test signal to the shielded box;
- an antenna located in the shielded box is coupled with the transmission probe and generates a coupled signal, the receiving probe receives the coupled signal and sends the coupled signal to the analyzer;
- the analyzer analyzes the coupled signal and the test signal and calculates the return loss of the antenna.
An antenna testing method comprising:
- providing an antenna testing device including a transmission probe, and a shielded box having a cutoff frequency;
- putting an antenna to be tested into the shielded box;
- sending a test signal to the transmission probe;
- generating an coupled signal through the coupling effect between the transmission probe and the antenna to be tested;
- calculating the return loss of the antenna to be tested through the analysis result of the test signal and the coupled signal;
- determining whether the antenna to be tested is qualified through the comparison between the calculated return loss and a theoretical value.
Dependencies are inferred from the claim text.