Patent ID: 9583826
Date: 2017-02-28
CPC Classifications: H01Q

Claim:
1. A resonance circuit for inhibiting interference between a high-speed connector and a microstrip or etched antenna, the resonance circuit being applicable to a circuit board of an electronic device, the circuit board being provided thereon with a circuit layout, the high-speed connector, and the antenna, the high-speed connector being provided at a lateral side of the circuit layout so that information can be transmitted between the electronic device and a second electronic device through the high-speed connector, the antenna enabling the electronic device to receive and transmit wireless signal at a predetermined frequency, the high-speed connector and one end of the antenna being respectively connected to a first connecting point and a second connecting point of the circuit layout, wherein a distance between the first connecting point and the second connecting point is not less than one wavelength of the wireless signal, the resonance circuit being characterized in that: the resonance circuit is a microstrip line provided on the circuit board outside the circuit layout, or an etched line provided within the circuit layout, and having one end connected to a third connecting point of the circuit layout; the third connecting point is provided on the circuit layout at a position between the first connecting point and the second connecting point; the resonance circuit has a resonance frequency covering a reception and transmission frequency of the antenna; and a first distance between the first connecting point and the third connecting point is smaller than a second distance between the second connecting point and the third connecting point.