LH phase shifter using ferroelectric varactors

被引：15

作者：

Giere, A ^{[1
]}

Damm, C ^{[1
]}

Scheele, P ^{[1
]}

Jakoby, R ^{[1
]}

机构：

[1] Tech Univ Darmstadt, Inst Microwave Engn, Merckstr 25, D-64283 Darmstadt, Germany

来源：

2006 IEEE RADIO AND WIRELESS SYMPOSIUM, PROCEEDINGS | 2006年

关键词：

ferroelectric devices; passive circuits; phase shifters; left-handed;

D O I：

10.1109/RWS.2006.1615180

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A tunable left handed (LH) transmission line used as continuously tunable phase shifter is presented. Using varactors based on Barium-Strontium-Titanate (BST) thick films, a Figure of Merit FoM = 29 degrees/dB has been measured at 2.8GHz. The bandwidth of the realized circuit using 3 unit cells reached 10%. The agreement or the presented result from simulation and measurement is good, the differences can be explained by tolerances of the used components. Additionally the simulations of a 180 degrees phase shifter based on the same components for the unit cell is presented. Simulated results of this phase shifter shows a bandwidth of 27% and a FoM(max) = 31.5 degrees/dB.

引用

页码：403 / 406

页数：4

共 7 条

[1] DAMM C, IEEE MTT S INT MICR
[2] DELENIV A, IEEE MTT S INT MICR
[3] Planar negative refractive index media using periodically L-C loaded transmission lines
Eleftheriades, GV
Iyer, AK
Kremer, PC
[J]. IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 2002, 50 (12) : 2702 - 2712
[4] Giere A, 2005, 35th European Microwave Conference, Vols 1-3, Conference Proceedings, P561
[5] HU W, IEEE MTT S INT MICR
[6] Composite right/left-handed transmission line metamaterials
Lai, A
Caloz, C
Itoh, T
[J]. IEEE MICROWAVE MAGAZINE, 2004, 5 (03) : 34 - 50
[7] SCHEELE P, 2004, 34 EUR MICR C 2004 1, V3, P1501

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