EM design of an isolated coplanar RE cross for MEMS switch matrix applications

Simon, Winfried; Lauer, Andreas K.; Schauwecker, B.; Wien, A.

doi:10.1109/smic.2003.1196695

Cited by 5 publications

(3 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In many cases, especially for mobile terminals, the most important feature is the capability of changing the operating frequency band [2]- [3]. This can be achieved either by using wide-band or multi-band antennas, which, however, are usually bulky structures, difficult to integrate in small mobile terminals, or by considering frequency reconfigurable antennas including switching elements [4]- [5] . structure, it is impossible to have a nearly perfect matching at both frequencies without a reconfigurable input tuning circuit.…”

Section: Introductionmentioning

confidence: 99%

A printed reconfigurable antenna for communication system

Romdhani

Denden

Samet

2009

2009 Mediterrannean Microwave Symposium (MMS)

View full text Add to dashboard Cite

This paper presents an application of the planar model approach to the design of reconfigurable dipole antenna. The model of the whole antenna consists of a planar structure connected via a microstrip line which guarantees a continuous excitation. For this we have to use the commercial electromagnetic software ADS (Momentum) based on the method of moments (MoM) to investigate the electromagnetic behaviour of this antenna. The behavior of the resonant frequency as a function of the position and the dimension of a lumped element is studied in depth. Furthermore, the effects of finite metallization thickness and losses are also investigated in detail.

show abstract

Section: Introductionmentioning

confidence: 99%

A printed reconfigurable antenna for communication system

Romdhani

Denden

Samet

2009

2009 Mediterrannean Microwave Symposium (MMS)

View full text Add to dashboard Cite

show abstract

“…Not only the development and improvement of single switches, but also their utilization in more complex structures (e.g., switch matrices [1], [2], varactors [3], phase shifters [4], re-configurable antennas [5], etc.) has been demonstrated.…”

Section: Introductionmentioning

confidence: 99%

“…Anyway, full-wave EM simulation is often mandatory to accurately predict the behavior of complex structures with several MEMS devices and line discontinuities [1], [8]. In fact, these structures consist of closely spaced elements (transmission lines, T-junctions, air-bridges, MEMS switches, etc.)…”

Section: Introductionmentioning

confidence: 99%

Mastering parasitics in complex MEMS circuits

Arcioni

Conciauro

Farinelli

et al. 2005

2005 European Microwave Conference

View full text Add to dashboard Cite

Because of the tight coupling between closely spaced 3-D elements, parasitic effects often degrade the overall performance of complex MEMS circuits. A Single-Pole-Double-Throw (SPDT) switch in CPW technology consisting of a T-junction with one series-resistive and one shunt-capacitive MEMS switches per arm has been fabricated and tested. Parasitic coupling is shown to significantly affect the isolation of the isolated arm. While full-wave EM simulators would lead to unaffordable computational efforts to master such phenomena, a simple yet accurate planar approach recently presented is employed to effectively model and predict the behaviour of both the whole SPDT and its components. Having identified the portions of the circuit responsible for the spurious coupling, the planar approach has been used to modify the geometry of the shunt MEMS so as to minimize the parasitics, yielding a significantly improved performance of the SPDT.

show abstract