NDLI: Filtering phase shifter with wide bandwidth and multiple transmission zeros

Content Provider	IET Digital Library
Author	Nie, Yi Zhang, Wei Shi, Jin
Abstract	A wideband filtering phase shifter is proposed using a cascaded single line and coupled line as a shunt stub of the centre-coupled line. Such kind of a shunt stub provides the possibility to achieve wideband impedance matching, wideband phase shift, and multiple controllable transmission zeros (TZs) at the same time. The coupling between the shunt stubs of the practical layout can generate extra TZs and enhance the frequency selectivity. Compared with the state-of-the-art designs, the proposed one has wider bandwidth, more TZs and medium size, and the former cannot juggle bandwidth and size. Two prototypes at 1.76 GHz are designed with the relative operating bandwidth for 45°±3° (90°±4.2°) phase shift of 75% (76%), five TZs and the minimum return loss of 14.7 dB.
Starting Page	773
Ending Page	775
Page Count	3
ISSN	00135194
Volume Number	56
e-ISSN	1350911X
Issue Number	Issue 15, Jul (2020)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/el/56/15
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/el.2020.1012
Journal	Electronics Letters
Publisher Date	2020-05-12
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Analogue Circuit Cascaded Single Line Centre-coupled Line Coupled Line Filter And Other Network Frequency 1.76 GHz Impedance Matching Loss 14.7 DB Microwave Circuit And Device Multiple Controllable Transmission Zeros Multiple Transmission Zeros Shunt Stub UHF Filter UHF Phase Shifters Waveguide And Microwave Transmission Line Component Wideband Filtering Phase Shifter Wideband Impedance Matching Wideband Phase Shift
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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