NDLI: UWB 90° phase shifter based on broadside coupler and T-shaped stub

Content Provider	IET Digital Library
Author	Wang, Jun Shen, Zhongxiang Zhao, Lei
Abstract	An UWB 90° phase shifter based on broadside coupler and T-shaped stub is proposed. Its operation mechanism is explained by the equivalent circuit. The measured results exhibit that the bandwidth is 126.7% with phase deviation within ±6°, and the insertion loss is <1.8 dB over the frequency band from 2.2 to 9.8 GHz. Comparison shows that the proposed design not only achieves the widest bandwidth, but also has low insertion loss and small phase difference. This design is a good candidate for UWB applications due to its low cost, planar structure, and convenient installation.
Starting Page	2048
Ending Page	2050
Page Count	3
ISSN	00135194
Volume Number	52
e-ISSN	1350911X
Issue Number	Issue 25, Dec (2016)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/el/52/25
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/el.2016.3364
Journal	Electronics Letters
Publisher Date	2016-11-15
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Analogue Circuit Broadside Coupler Equivalent Circuit Frequency 2.2 GHz to 9.8 GHz Insertion Loss Operation Mechanism Phase Deviation Phase Difference Phase Shifter Planar Structure T-shaped Stub UHF Couplers UWB Phase Shifter Waveguide And Microwave Transmission Line Component Waveguide Couplers
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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UWB 90° phase shifter based on broadside coupler and T-shaped stub