Compact, wideband impedance tuner using a three‐line‐microstrip structure. Issue 9 (1st May 2018)

• Record Type: Journal Article
• Authors: Heredia, J.; Ribó, M.; Pradell, L.
• Is Part Of: Electronics letters. Volume 54:Issue 9(2018)
• Page Start: 572
• Page End: 574
• Publication Date: 2018-05-01
• Subjects: circuit tuning -- varactors -- electric impedance -- microstrip lines; variable capacitances -- parallel‐connected varactors -- three‐line‐microstrip modes -- wideband impedance tuner -- three‐line‐microstrip structure -- three‐line‐microstrip compact impedance tuner -- multimodal structure -- bandwidth 1.4 GHz to 3.2 GHz; Electronics -- Periodicals; 621.381
• DOI: 10.1049/el.2018.0602
• Languages: English
• ISSNs: 0013-5194

Abstract

Abstract : A novel three‐line‐microstrip compact impedance tuner is presented. It is based on a multimodal structure wherein six variable capacitances, implemented with two parallel‐connected varactors each, create multiple interactions among the three‐line‐microstrip modes in a reduced circuit area. Experimental results show better‐than‐70% coverage of the Smith chart in an 85% frequency bandwidth from 1.4 to 3.2 GHz.