A 2-pole RF-MEMS tunable bandpass filter for high-power applications

Chaabane, Ghassen; Pothier, A.; Chatras, Matthieu; Guines, Cyril; Madrangeas, Valérie; Blondy, Pierre

doi:10.1109/eumc.2014.6986440

Cited by 8 publications

(3 citation statements)

References 6 publications

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“…To this end, the focus of the current contribution is on low-complexity Radio Frequency (RF) passive components, and in particular on MEMS (MicroElectroMechanical-Systems) technology for their realization, well-known in literature with the RF-MEMS acronym [12]. Through about two decades of research, a broad variety of highly-miniaturized RF-MEMS-based passives with remarkable characteristics in terms of RF performances and frequency wide-operability have been demonstrated, like ohmic and capacitive micro-relays [13], [14], multi-state phase shifters [15], tunable filters [16], switching matrices [17], [18], and so on.…”

Section: Introductionmentioning

confidence: 99%

Towards Next Generation of High-Performance Radio Frequency Passive Components for Beyond-5G, 6G and Super-IoT – Application of Response Surface Method to the Optimization of RF-MEMS Reconfigurable Power Attenuators

Iannacci

Tagliapietra

Bucciarelli

2021

Preprint

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The emerging paradigms of Beyond-5G, 6G and Super-IoT will demand for Radio Frequency (RF) passive components with pronounced performance, and RF-MEMS technology, i.e. Microsystem-based RF passives, is a good candidate to meet such a challenge. As known, RF-MEMS have a complex behavior, that crosses different physical domains (mechanical; electrical; electromagnetic), making the whole design optimization and trimming phases particularly articulated and time consuming. In this work, we propose a novel design optimization approach based on the Response Surface Method (RSM) statistical methodology, focusing the attention on a class of RF-MEMS-based programmable step power attenuators. The proposed method is validated both against physical simulations, performed with Finite Element Method (FEM) commercial software tools, as well as experimental measurements of physical devices. The case study here discussed features 3 DoFs (Degrees of Freedom), comprising both geometrical and material parameters, and aims at optimizing the RF performance of the MEMS attenuator in terms of attenuation (S21 Scattering parameter) and reflection (VSWR – Voltage Standing Wave Ratio). When validate, the proposed RSM-based method allows avoiding physical FEM simulations, thus making the design optimization considerably faster and less complex, both in terms of time and computational load.

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Section: Introductionmentioning

confidence: 99%

Towards Next Generation of High-Performance Radio Frequency Passive Components for Beyond-5G, 6G and Super-IoT – Application of Response Surface Method to the Optimization of RF-MEMS Reconfigurable Power Attenuators

Iannacci

Tagliapietra

Bucciarelli

2021

Preprint

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“…Rapid growth in demand for multiband and multistandard RF front‐end modules has accelerated research activities, especially on the implementation of reconfigurable RF filters. Such activities resulted in a 12–18 GHz three‐pole tunable filter that was implemented using RF‐microelectromechanical systems (MEMS) capacitive switches with loaded resonators , a C‐Ku band tunable BPF using RF‐MEMS switch , a tunable microstrip BPF using RF‐MEMS switches and metal‐insulator‐metal (MIM) capacitors for ultrawideband systems , and a 0.69–1.13 GHz two‐pole tunable BPF using RF‐MEMS switch with fixed capacitors . Piezoelectric disks were used on substrate integrated evanescent‐mode cavities to create a tunable filter with tuning range of 0.98–3.48 GHz .…”

Section: Introductionmentioning

confidence: 99%

Development of 6–12 GHz evanescent–mode two–pole low–loss tunable bandpass filter

Cho

Joshi

Liu

et al. 2015

Micro & Optical Tech Letters

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Abstract-A very low loss, wide bandwidth, tunable evanescent-mode cavity band pass filter (BPF) with one-octave (6-12 GHz) tuning range is presented. In order to implement a very low insertion loss with wideband operation, a new coaxial feed structure is devised in the tunable BPF. Across the entire tuning range, the achieved insertion loss is less than 0.5 dB. The tunability is realized by using silicon microelectromechanical systems (MEMS) diaphragms with slits that are electrostatically actuated.

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“…counterpart. In [55][56][57][58], several micro-electro-mechanical switches are employed to increase the electrical length of filter resonators, enabling tunable responses. This can be done by connecting transmission line sections or reactive elements to the resonator, thus changing the resonance frequency.…”

Section: Reconfiguration Techniquesmentioning

confidence: 99%

Development of non-conventional microwave devices based on substrate-integrated technology for advanced applications

Nova Giménez

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Introduction 1.1 Motivation and Interest of the TopicThere has been a rapid transformation in communication systems in recent years, with a particular impact on satellite communications. The high demand for data throughput, bandwidth and ubiquitous connectivity is pushing microwave technology to its limits. This change is particularly evident in the space industry, where the business focus has shifted from large Geostationary Earth Orbit (GEO) satellites to constellations of numerous satellites operating in Low Earth Orbit (LEO). The concept of large LEO constellations is reminiscent of the ambitious global phone connectivity projects of the 1990s that include Iridium, Globalstar, and Odyssey. Most of these systems were ultimately cancelled due to their high costs or technological limitations, which led the new LEO systems to focus on reducing the cost per bit.In this evolving scenario, the feasibility of these new satellite systems heavily relies on the reduction of production, launching, and operation costs. Microwave devices used in these space communications systems must not only exhibit high performance and adaptability but also undergo a drastic reduction in weight, size, and price. These factors are crucial for the success and sustainability of the new generation of space communication systems, as highlighted by studies on large LEO constellations and industry reports [1,2].Different solutions can be applied to improve the performance and reduce the production cost and weight of the Radio Frequency (RF) front-ends. One notable solution is the Substrate Integrated Circuit (SIC) technology, which emerged in the late 1990s to address similar demands of the industry [3,4]. The SIC technology involves the integration of different waveguide topologies within a substrate stack-up, combining the benefits of planar transmission lines (e.g., microstrip, coplanar, and stripline) and non-planar technologies (e.g.,• Geostationary Earth Orbit (GEO) satellites orbit the Earth at an altitude of approximately 36 000 km [11]. At this altitude, satellites travel at the same rate as the Earth's rotation, making them appear stationary in the sky. This characteristic eliminates the need for complex tracking systems in the ground segment and enables near-continental coverage. A single GEO satellite can provide coverage from around 20 degrees north to 20 degrees south latitude [9]. Moreover, due to its high altitude, only three equally spaced GEO satellites are required to achieve quasi-global coverage. These characteristics make the GEO systems particularly suitable for broadcasting communications Substrate integrated technologiesThe integration of planar and non-planar circuits is a critical aspect of microwave and millimetre wave front-ends. Planar transmission lines (i.e., microstrip, coplanar waveguide, Empty Substrate Integrated Coaxial Line (ESICL) and Ridge Empty Substrate Integrated Waveguide (RESIW) that integrate coaxial lines and ridge waveguides in planar substrates.The significant interest in this technology has als...

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A 2-pole RF-MEMS tunable bandpass filter for high-power applications

Cited by 8 publications

References 6 publications

Towards Next Generation of High-Performance Radio Frequency Passive Components for Beyond-5G, 6G and Super-IoT – Application of Response Surface Method to the Optimization of RF-MEMS Reconfigurable Power Attenuators

Towards Next Generation of High-Performance Radio Frequency Passive Components for Beyond-5G, 6G and Super-IoT – Application of Response Surface Method to the Optimization of RF-MEMS Reconfigurable Power Attenuators

Development of 6–12 GHz evanescent–mode two–pole low–loss tunable bandpass filter

Development of non-conventional microwave devices based on substrate-integrated technology for advanced applications

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