US 12,316,364 B2
Method and device for front-end filtering frequency selection for communication receiver
Tao Zhang, Wuhan (CN)
Assigned to WUHAN UNIVERSITY, Wuhan (CN)
Filed by Wuhan University, Wuhan (CN)
Filed on Mar. 31, 2023, as Appl. No. 18/129,104.
Claims priority of application No. 202210336890.8 (CN), filed on Mar. 31, 2022.
Prior Publication US 2023/0318649 A1, Oct. 5, 2023
Int. Cl. H04B 1/16 (2006.01)
CPC H04B 1/1638 (2013.01) 4 Claims
OG exemplary drawing
 
1. A method for front-end filtering frequency selection for a communication receiver, the method comprising:
1) disposing a reference oscillator working at a preset frequency associated with a frequency to be received by the communication receiver; and
2) transmitting the frequency to be received to a front-end filtering frequency selector, to realize accurate tuning; wherein, a frequency of the front-end filtering frequency selector is a required tuning frequency based on a device parameter relationship between the reference oscillator and the front-end filtering frequency selector,
wherein the preset frequency of the reference oscillator is not set to be an integer fraction of the required tuning frequency, to avoid frequency multiplication in a tuning loop,
wherein the preset frequency of the reference oscillator is twice, 1.5 times or ¾ of the required tuning frequency.