Three-dimensional high-isolated dual-band balun using double-sided parallel-strip line with inserted conductor plane

A novel three-dimensional high-isolated dual-band balun is proposed for the first time. A horizontal feeding plane, a vertically mounted plane, and four grounded resistors constitute the entire structure. By introducing the double-sided parallel-strip line with an inserted conductor plane to the mid...

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Bibliographic Details
Published in:Electronics letters 2017-08, Vol.53 (17), p.1211-1213
Main Authors: Yao, Lidan, Wu, Yongle, Li, Mingxing, Liu, Yuanan
Format: Article
Language:English
Subjects:
baluns
conductors (electric)
double‐sided parallel‐strip line
frequency 1.3 GHz
frequency 2.5 GHz
frequency‐independent phase difference
grounded resistor
horizontal feeding plane
inserted conductor plane
Microwave technology
resistors
strip lines
three‐dimensional high‐isolated dual‐band balun
UHF circuits
vertically mounted plane
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Summary:A novel three-dimensional high-isolated dual-band balun is proposed for the first time. A horizontal feeding plane, a vertically mounted plane, and four grounded resistors constitute the entire structure. By introducing the double-sided parallel-strip line with an inserted conductor plane to the middle of the vertical plane, the output matching and isolation, frequency-independent phase difference, and complete ground in the bottom layer of the horizontal plane are perfectly integrated in this novel balun. To prove this conception, a practical balun operating at 1.3/2.5 GHz is designed. As expected, remarkable consistency between the simulation and measurement is obtained.
ISSN:0013-5194
1350-911X
1350-911X
DOI:10.1049/el.2017.1954