Invention Grant
US08525573B2 Quadrature radio frequency mixer with low noise and low conversion loss 有权
具有低噪声和低转换损耗的正交射频混频器

  • Patent Title: Quadrature radio frequency mixer with low noise and low conversion loss
  • Patent Title (中): 具有低噪声和低转换损耗的正交射频混频器
  • Application No.: US13289249
    Application Date: 2011-11-04
  • Publication No.: US08525573B2
    Publication Date: 2013-09-03
  • Inventor: Alberto Cicalini
  • Applicant: Alberto Cicalini
  • Applicant Address: US CA San Diego
  • Assignee: Qualcomm Incorporated
  • Current Assignee: Qualcomm Incorporated
  • Current Assignee Address: US CA San Diego
  • Agent S. Hossain Beladi
  • Main IPC: G06G7/12
  • IPC: G06G7/12
Quadrature radio frequency mixer with low noise and low conversion loss
Abstract:
In one embodiment of the invention, a method for convolution of signals is disclosed including generating four phased half duty cycle clocks each being out of phase by a multiple of ninety degrees from the others; coupling the four phased half duty cycle clocks into a four phase half duty cycle mixer; and switching switches in the four phase half duty cycle mixer in response to the four phased half duty cycle clocks to convolve a differential input signal with the four phased half duty cycle clocks to concurrently generate a differential in-phase output signal and a differential quadrature-phase output signal on a dual differential output port.
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