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Title:
RADIO FREQUENCY POWER AMPLIFIER AND DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/205084
Kind Code:
A1
Abstract:
A radio frequency power amplifier and a device are disclosed. A first microstrip line and a second microstrip line are coupled, one end of the second microstrip line is an open stub and another end of the second microstrip line is grounded; and the first microstrip line having a first width is connected to a first transmission line having a second width which is wider than the first width. Therefore, some harmonic bands suppression can be implemented independently. Furthermore, the harmonic termination is independent and may not impact one or more fundamental components during matching a network. In addition, it may not take up more space and is sufficiently compact. Furthermore, sufficient wide harmonic response bandwidth can be provided.

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Inventors:
WANG ZHANCANG (CN)
LI SHUN (CN)
Application Number:
PCT/CN2018/084784
Publication Date:
October 31, 2019
Filing Date:
April 27, 2018
Export Citation:
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Assignee:
ERICSSON TELEFON AB L M (SE)
WANG ZHANCANG (CN)
International Classes:
H01P7/08
Foreign References:
US4518931A1985-05-21
CN101038979A2007-09-19
CN105977585A2016-09-28
CN104143674A2014-11-12
CN105977598A2016-09-28
CN104900949A2015-09-09
Other References:
CHI-HOU CHIO ET AL., COMPACT QUASI-ELLIPTIC BANDPASS FILTER WITH A VERY WIDE STOPBAND USING QUARTER-WAVELENGTH STEPPED IMPEDANCE RESONATORS, 2012
SARAWUTH CHAIMOOL ET AL., RESONATOR-EMBEDDED FOUR-POLE CROSS-COUPLED DUAL-BAND MICROSTRIP BANDPASS FILTERS, October 2006 (2006-10-01)
PAL MANIMALA ET AL., A DISTINCTIVE RESONANCE: MULTIBAND BANDPASS FILTER DESIGN TECHNIQUES USING MULTIMODE RESONATORS, 1 December 2015 (2015-12-01)
See also references of EP 3785320A4
Attorney, Agent or Firm:
BEIJING SANYOU INTELLECTUAL PROPERTY AGENCY LTD. (CN)
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