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US07315730B2 Architecture for a receiver front end having dual output low noise amplifier driving separate pre-selectors coupled to a transformer for single ended output 有权
用于具有双输出低噪声放大器的接收机前端的架构，驱动耦合到用于单端输出的变压器的分离的预选器

  • Patent Title: Architecture for a receiver front end having dual output low noise amplifier driving separate pre-selectors coupled to a transformer for single ended output
  • Patent Title (中): 用于具有双输出低噪声放大器的接收机前端的架构，驱动耦合到用于单端输出的变压器的分离的预选器
  • Application No.: US11152798
    Application Date: 2005-06-14
  • Publication No.: US07315730B2
    Publication Date: 2008-01-01
  • Inventor: Ariel L. Galan
  • Applicant: Ariel L. Galan
  • Applicant Address: US IL Schaumberg
  • Assignee: Motorola, Inc.
  • Current Assignee: Motorola, Inc.
  • Current Assignee Address: US IL Schaumberg
  • Agent Barbara R. Doutre
  • Main IPC: H04B17/02
  • IPC: H04B17/02
Architecture for a receiver front end having dual output low noise amplifier driving separate pre-selectors coupled to a transformer for single ended output
Abstract:
An architecture for a receiver front end utilizes a dual output low noise amplifier (102) driving separate, fixed preselectors (104, 106) coupled to a transformer (108) to generate a single ended output (113). A pair of blocks coupled in series provides a dual band output. Additional pairs of blocks (201, 203) can be cascaded in parallel to provide additional frequency bands of operation. The front end architecture of the present invention provides switchless multi-band operation to a communication device.
Abstract(Chinese):

用于接收机前端的架构使用双输出低噪声放大器（102）来驱动耦合到变压器（108）的单独的固定预选器（104,106），以产生单端输出（113）。 串联耦合的一对块提供双频带输出。 附加的块对（201,203）可以并联级联以提供额外的操作频带。 本发明的前端架构向通信设备提供无切换多频带操作。

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