Title:
CURRENT REUSE PHASE-SHIFTING FREQUENCY MIXER HAVING HIGH HARMONIC SUPPRESSION RATIO
Document Type and Number:
WIPO Patent Application WO/2024/050870
Kind Code:
A1
Abstract:
Disclosed in the present invention is a current reuse phase-shifting frequency mixer having a high harmonic suppression ratio. A radio-frequency input signal RFIN passes through an orthogonal generation unit to generate a group of I differential signals and a group of Q differential signals; the I and Q differential signals respectively enter an I-path phase-shifting frequency mixing unit having a high harmonic suppression ratio and a Q-path phase-shifting frequency mixing unit having a high harmonic suppression ratio, are frequency-mixed with a differential local oscillator signal in a local oscillator signal and a control signal of a timing control unit, and are phase-shifted to generate I- and Q-path differential intermediate-frequency signals; a positive end in the I-path differential intermediate-frequency signal and a positive end in the Q-path differential intermediate-frequency signal are inputted into a same load to generate an intermediate-frequency positive output signal; a negative end in the I-path differential intermediate-frequency signal and a negative end in the Q-path differential intermediate-frequency signal are inputted into a same load to generate an intermediate-frequency negative output signal; and the intermediate-frequency positive output signal and the intermediate-frequency negative output signal jointly form an intermediate-frequency differential output signal. The present invention has a simple and compact structure, improves the phase-shifting accuracy of the system, and can implement frequency-mixing, thereby reducing the power consumption of the system.
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Inventors:
WU WEN (CN)
HUANG TONGDE (CN)
CAO HANZHANG (CN)
HU CHUN (CN)
HUANG TONGDE (CN)
CAO HANZHANG (CN)
HU CHUN (CN)
Application Number:
PCT/CN2022/120053
Publication Date:
March 14, 2024
Filing Date:
September 21, 2022
Export Citation:
Assignee:
UNIV NANJING SCI & TECH (CN)
International Classes:
H03D7/14
Foreign References:
| CN105007044A | 2015-10-28 | |||
| CN102394567A | 2012-03-28 | |||
| US20210281218A1 | 2021-09-09 |
Other References:
"Doctoral Dissertation", 1 May 2019, SOUTHEAST UNIVERSITY, CN, article WANG, WEIBO: "Research on Microwave and Millimeter Wave Monolithic Intergrated Circuits Design", pages: 1 - 389, XP009553159, DOI: 10.27014/d.cnki.gdnau.2019.004558
JINGYUE CHEN, GAO YIRAN; WU ZHONGHAN; DAI JIAN; XU KUN: "Homodyne Coherent Microwave Photonic Transmission Link with 100.8 km High Dynamic Range", ACTA OPTICA SINICA, vol. 42, no. 5, 10 March 2022 (2022-03-10), pages 0506001 - 0506001-7, XP093147070
JINGYUE CHEN, GAO YIRAN; WU ZHONGHAN; DAI JIAN; XU KUN: "Homodyne Coherent Microwave Photonic Transmission Link with 100.8 km High Dynamic Range", ACTA OPTICA SINICA, vol. 42, no. 5, 10 March 2022 (2022-03-10), pages 0506001 - 0506001-7, XP093147070
Attorney, Agent or Firm:
NANJING SUCHUANG INTELLECTUAL PROPERTY LAW FIRM (CN)
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