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

doi:DOI: 10.19682/j.cnki.1005-8885.2019.1011

The Journal of China Universities of Posts and Telecommunications ›› 2019, Vol. 26 ›› Issue (4): 1-7.doi: DOI: 10.19682/j.cnki.1005-8885.2019.1011

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Miniaturized single-channel concurrent dual-band mixing

architecture with one frequency-divided local oscillator

Yu Cuiping, Gao Yuan, Wu Fan, Liu Yuanan

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).

Abstract

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

CLC Number:

TN928

Yu Cuiping, Gao Yuan, Wu Fan, Liu Yuanan.

Miniaturized single-channel concurrent dual-band mixing

architecture with one frequency-divided local oscillator

[J]. The Journal of China Universities of Posts and Telecommunications, 2019, 26(4): 1-7.

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Miniaturized single-channel concurrent dual-band mixing

architecture with one frequency-divided local oscillator

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