Title:
【発明の名称】電力増幅器結合回路
Document Type and Number:
Japanese Patent JPH06507775
Kind Code:
A
Abstract:
A dual-mode RF signal power amplifier combining network is comprised of two branches, each having a power amplifier (200 and 201). The first branch contains a non-linear mode power amplifier (200) while the second branch contains a linear mode power amplifier (201). The non-linear mode branch also has an RF switch (210). Both branches are coupled to a common output node (220). The common node (220) is coupled to a filter (107) before going to an antenna (106). The non-linear mode power amplifier (200) operates when an FM signal is to be amplified, while the linear amplifier (201) is biased in an off state. The linear mode power amplifier (201) operates when a digital signal is to be amplified, while the non-linear amplifier (200) is biased in an off state. The RF switch (210) removes the non-linear amplifier (200) from the circuit to prevent loading the on state linear amplifier (201).
Inventors:
Schwent, Dale Gee
Osmani, Rashid M
Wechapelle, Robert N
Osmani, Rashid M
Wechapelle, Robert N
Application Number:
JP51565293A
Publication Date:
September 01, 1994
Filing Date:
January 11, 1993
Export Citation:
Assignee:
MOTOROLA INCORPORATED
International Classes:
H03F1/02; H03F3/20; H03F3/21; H04B1/04; H04B1/40; H04B7/26; (IPC1-7): H04B1/04; H04B1/04
Attorney, Agent or Firm:
Shinsuke Onuki (1 person outside)