W-band tunable reflective type phase shifter based on waveguide-mounted RF MEMS

Psychogiou, Dimitra; Hesselbarth, Jan; Li, Y.; Kuehne, S.C.; Hierold, Christofer

doi:10.1109/imws3.2011.6061894

Cited by 9 publications

(2 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this article, an analog transmission‐type phase shifter based on MEMS tilting fingers [6] integrated beneath a half‐wavelength long ridge waveguide resonator is presented. A prototype for frequencies between 96 and 106 GHz has been designed, manufactured, and experimentally validated.…”

Section: Introductionmentioning

confidence: 99%

Millimeter‐wave phase shifter based on waveguide‐mounted RF‐MEMS

Psychogiou

Hesselbarth

et al. 2013

Micro & Optical Tech Letters

View full text Add to dashboard Cite

A continuously variable transmission type W‐band phase shifter based on a single pole bandpass filter tuned by MEMS actuated fingers is reported. Tuning is achieved by means of two half‐wavelength long conductive fingers that synchronously rotate upwards in an antiparallel fashion. The fingers deflection results in a distributed variable shunt capacitance which in turn leads to a variable analog phase shift. For an applied DC bias voltage between 0 and 26 V, the transmission phase can be continuously varied up to 46.4° at a frequency of 106 GHz with an insertion loss of less than 3.4 dB. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:465–468, 2013; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27390

show abstract

Section: Introductionmentioning

confidence: 99%

Millimeter‐wave phase shifter based on waveguide‐mounted RF‐MEMS

Psychogiou

Hesselbarth

et al. 2013

Micro & Optical Tech Letters

View full text Add to dashboard Cite

show abstract

“…In addition, a new design for a transmission-type phase shifter based on the coupling of two tunable resonances is also reported to improve the RF performance in terms of phase shift (134°) and FOM (55°/dB). The concept has been extended to a reflective-type phase shifter design [15]. A reflective-type phase shifter operating at a frequency of 107.4 GHz with a state-of-the-art performance in terms of maximum analogue phase shift (377°), IL (<3.74 dB) and FOM (101°/dB) is reported.…”

Section: Introductionmentioning

confidence: 99%

Continuously variable W-band phase shifters based on MEMS-actuated conductive fingers

Psychogiou

Hesselbarth

et al. 2013

Int. J. Microw. Wireless Technol.

View full text Add to dashboard Cite

This paper presents four continuously variable W-band phase shifters in terms of design, fabrication, and radiofrequency (RF) characterization. They are based on low-loss ridge waveguide resonators tuned by electrostatically actuated highly conductive rigid fingers with measured variable deflection between 0.38 and 8.258 (at a control voltage of 0-27.5 V). A transmission-type phase shifter based on a tunable highly coupled resonator has been manufactured and measured. It shows a maximum figure of merit (FOM) of 19.58/dB and a transmission phase variation of 708 at 98.4 GHz. The FOM and the transmission phase shift are increased to 558/dB and 1348, respectively, by the effective coupling of two tunable resonances at the same device with a single tuning element. The FOM can be further improved for a tunable reflective-type phase shifter, consisting of a transmission-type phase shifter in series with a passive resonator and a waveguide short. Such a reflective-type phase shifter has been built and tested. It shows a maximum FOM of 1018/dB at 107.4 GHz. Here, the maximum phase shift varied between 08 and 3778 for fingers deflections between 0.38 and 8.258.

show abstract