Invention Grant
US09287836B2 Method and apparatus of an input resistance of a passive mixer to broaden the input matching bandwidth of a common source-gate LNA 有权
无源混频器的输入电阻的方法和装置,以扩大公共源极LNA的输入匹配带宽

  • Patent Title: Method and apparatus of an input resistance of a passive mixer to broaden the input matching bandwidth of a common source-gate LNA
  • Patent Title (中): 无源混频器的输入电阻的方法和装置,以扩大公共源极LNA的输入匹配带宽
  • Application No.: US14108312
    Application Date: 2013-12-16
  • Publication No.: US09287836B2
    Publication Date: 2016-03-15
  • Inventor: Zaw Soe
  • Applicant: Tensorcom, Inc.
  • Applicant Address: US CA Carlsbad
  • Assignee: Tensorcom, Inc.
  • Current Assignee: Tensorcom, Inc.
  • Current Assignee Address: US CA Carlsbad
  • Agent Steven J Shattil
  • Main IPC: H04B1/16
  • IPC: H04B1/16 H03F3/19 H03F3/387 H03F1/22 H03F3/193 H03D7/12 H03D7/14 H03D7/16
Method and apparatus of an input resistance of a passive mixer to broaden the input matching bandwidth of a common source-gate LNA
Abstract:
A cascode common source and common gate LNAs operating at 60 GHz are introduced and described. The cascode common source LNA is simulated to arrive at an optimum ratio of upper device width to the lower device width. The voltage output of the cascode common source LNA is translated into a current to feed and apply energy to the mixer stage. These input current signals apply the energy associated with the current directly into the switched capacitors in the mixer to minimize the overall power dissipation of the system. The LNA is capacitively coupled to the mixer switches in the I and Q mixers and are enabled and disabled by the clocks generated by the quadrature oscillator. These signals are then amplified by a differential amplifier to generate the sum and difference frequency spectra.
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