Abstract
A microstrip to bilateral slot line (BS) transition is proposed in this letter, which contains a 50-Ω constant impedance BS and a heart-shaped slot line cavity. Unlike traditional slot line transitions, the proposed transition does not suffer from matching issues when losses are incurred by multi-section impedance transformers and this transition has a potential to operate from 530 MHz to over 20 GHz if a K-connector is used. This letter will illustrate the discovery of BS with constant impedance first and then its application in design of the 50-Ω BS. The heart-shaped slot line cavity is proposed for bandwidth improvement. And the transition size is also reduced due to the absence of multi-section impedance transformers. A prototype is fabricated and measured to demonstrate this concept of the design, and it has a practical operating bandwidth from 0.53 to 12.23 GHz (about 23:1) with return loss better than 10 dB and insertion loss less than 3 dB. © 2001-2012 IEEE.
Recommended Citation
F. Lin et al., "A Wideband Microstrip to Bilateral Slotline Transition using Constant Impedance Bilateral Slotline and Heart-shaped Irregular Cavity," IEEE Microwave and Wireless Components Letters, vol. 23, no. 5, pp. 255 - 257, article no. 6494346, Institute of Electrical and Electronics Engineers, Apr 2013.
The definitive version is available at https://doi.org/10.1109/LMWC.2013.2255123
Department(s)
Electrical and Computer Engineering
Keywords and Phrases
Bilateral slotline; slotline transition; tapered slot antenna (TSA); Vivaldi antenna
International Standard Serial Number (ISSN)
1531-1309
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2024 Institute of Electrical and Electronics Engineers, All rights reserved.
Publication Date
09 Apr 2013
