Abstract
Novel designs of directional couplers with input and output isolation for microwave circuits are proposed. The low-loss directional coupler on coupled lines designed with implementation of multilayer liquid crystal polymer (LCP) technology is considered as a component of phase shifters. Using thin layers of LCP circuit material makes it possible to realize a periodical capacitive loading of coupled lines in order to obtain dc isolation between input and outputs, which allows significant simplifying the biasing circuitry of phase shifters and as a result reducing overall size. In line with the experimental results of the coupled line structure the insertion loss does not exceed 0.1 dB in operational frequency band 2.7-3.2 GHz.
| Original language | English |
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| Title of host publication | European Microwave Week 2014: Connecting the Future, EuMW 2014 - Conference Proceedings; EuMC 2014: 44th European Microwave Conference |
| Publisher | IEEE |
| Pages | 93-95 |
| Number of pages | 3 |
| ISBN (Print) | 9782874870354 |
| DOIs | |
| Publication status | Published - 15 Dec 2014 |
| Event | 44th European Microwave Conference 2014 - Rome, Italy Duration: 6 Oct 2014 → 9 Oct 2014 |
Conference
| Conference | 44th European Microwave Conference 2014 |
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| Abbreviated title | EuMC 2014 |
| Country/Territory | Italy |
| City | Rome |
| Period | 6/10/14 → 9/10/14 |
| Other | Held as Part of the 17th European Microwave Week, EuMW 2014 |
Keywords
- coupled lines
- directional coupler
- liquid crystal polymer (LCP)
- multilayer technology
ASJC Scopus subject areas
- Electrical and Electronic Engineering