中国邮电高校学报(英文) ›› 2019, Vol. 26 ›› Issue (4): 1-7.doi: DOI: 10.19682/j.cnki.1005-8885.2019.1011

• Wireless •    下一篇

Miniaturized single-channel concurrent dual-band mixing architecture with one frequency-divided local oscillator

Yu Cuiping, Gao Yuan, Wu Fan, Liu Yuanan   

  1. School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China
  • 收稿日期:2018-09-01 修回日期:2019-04-03 出版日期:2019-08-31 发布日期:2019-10-29
  • 通讯作者: Corresponding author: Yu Cuiping, E-mail: yucuiping@bupt.edu.cn E-mail:yucuiping@bupt.edu.cn
  • 作者简介:Corresponding author: Yu Cuiping, E-mail: yucuiping@bupt.edu.cn
  • 基金资助:
    This work was supported by the National Natural Science
    Foundations of China (61821001).

Miniaturized single-channel concurrent dual-band mixing
architecture with one frequency-divided local oscillator

Yu Cuiping, Gao Yuan, Wu Fan, Liu Yuanan   

  1. School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China
  • Received:2018-09-01 Revised:2019-04-03 Online:2019-08-31 Published:2019-10-29
  • Contact: Corresponding author: Yu Cuiping, E-mail: yucuiping@bupt.edu.cn E-mail:yucuiping@bupt.edu.cn
  • About author:Corresponding author: Yu Cuiping, E-mail: yucuiping@bupt.edu.cn
  • Supported by:
    This work was supported by the National Natural Science
    Foundations of China (61821001).

摘要:

Concurrent dual-band transceiver system is widely used in conditions where transceivers are required to work in
different bands at the same time. In order to miniaturize the concurrent dual-band transceiver system and reduce the
number of components in a transceiver, a novel receiver mixing structure with one frequency-divided local oscillator
is proposed. Compared to traditional mixing architecture with two local oscillators, the proposed structure reduces a
local oscillator and a bandpass filter. In addition, the output signal of proposed mixing architecture has a better
error vector magnitude (EVM) performance. The proposed mixing architecture is described in detail; the method of
local oscillator signal frequency selection and the applicable conditions of the proposed structure are derived through
math formula; and the conclusions are demonstrated by experimental results.

关键词: concurrent dual-band, receivers, nonlinear systems, low system complexity, mixing

Abstract:

Concurrent dual-band transceiver system is widely used in conditions where transceivers are required to work in
different bands at the same time. In order to miniaturize the concurrent dual-band transceiver system and reduce the
number of components in a transceiver, a novel receiver mixing structure with one frequency-divided local oscillator
is proposed. Compared to traditional mixing architecture with two local oscillators, the proposed structure reduces a
local oscillator and a bandpass filter. In addition, the output signal of proposed mixing architecture has a better
error vector magnitude (EVM) performance. The proposed mixing architecture is described in detail; the method of
local oscillator signal frequency selection and the applicable conditions of the proposed structure are derived through
math formula; and the conclusions are demonstrated by experimental results.

Key words: concurrent dual-band, receivers, nonlinear systems, low system complexity, mixing

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