Title:
IMPEDANCE MATCHING CIRCUIT, ANTENNA AND TERMINAL
Document Type and Number:
WIPO Patent Application WO/2018/076440
Kind Code:
A1
Abstract:
Provided in the present invention are an impedance matching circuit, antenna and terminal, wherein the impedance matching circuit comprises: a radio frequency module provided with a nonlinear device; a microstrip line, a first end of the microstrip line being connected to an output end of the nonlinear device, and a second end of the microstrip line being directly grounded or grounded by means of a frequency deviation adjustment element, wherein an electric length of the microstrip line is a positive even multiple of λ/4, and λ is a carrier wavelength of a radio frequency circuit. By means of the technical solution of the present invention, impedance matching is achieved for a radio frequency circuit, while the second harmonic in transmitted signals is reduced, and the communication quality of the terminal is improved.
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Inventors:
XIN ZHEXIN (CN)
NIU YANMING (CN)
NIU YANMING (CN)
Application Number:
PCT/CN2016/107821
Publication Date:
May 03, 2018
Filing Date:
November 30, 2016
Export Citation:
Assignee:
YULONG COMPUTER TELECOMMUNICATION SCIENTIFIC SHENZHEN CO LTD (CN)
International Classes:
H03F3/189
Foreign References:
CN102035058A | 2011-04-27 | |||
CN1578125A | 2005-02-09 | |||
CN102291092A | 2011-12-21 | |||
EP2267886A1 | 2010-12-29 | |||
CN1444345A | 2003-09-24 | |||
CN101699767A | 2010-04-28 | |||
CN101789767A | 2010-07-28 | |||
CN103765765A | 2014-04-30 | |||
CN104300925A | 2015-01-21 | |||
CN104518742A | 2015-04-15 | |||
JP2011035761A | 2011-02-17 |
Attorney, Agent or Firm:
SHENZHEN SCIENBIZIP INTELLECTUAL PROPERTY AGENCY CO.,LTD. (CN)
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