Highly-Selective Electronically-Tunable Cryogenic Filters Using Monolithic, Discretely-Switchable MEMS Capacitor Arrays

Prophet, Eric; Musolf, J.; Zuck, B. F.; Jimenez, Silverio; Kihlstrom, K.E.; Willemsen, Balam A.

doi:10.1109/tasc.2005.850136

Cited by 39 publications

(21 citation statements)

References 7 publications

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“…Interest also exists for integrating RF MEMS devices with high-Tc superconductors (HTS); demonstrated applications with integrated MEMS include an HTS microstrip resonator [12] and a tunable HTS filter [13]. Cryogenic temperatures have adverse effects on the operational stability and longevity of capacitive MEMS switches.…”

mentioning

confidence: 99%

Cryogenic Performance of RF MEMS Switch Contacts

Brown

Morris²,

Kingon

et al. 2008

J. Microelectromech. Syst.

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Abstract-A series of experiments was performed to characterize RF microelectromechanical system switch performance under variable environmental conditions and cryogenic temperatures. Data were recorded in helium and nitrogen environments to lower stiction failure rates as well as to circumvent switch bouncing arising from low pressure at cryogenic temperatures. Contact resistance values were observed to be lower at cryogenic temperatures but still two orders of magnitude higher than the values predicted for the constriction resistance of gold asperity contacts, consistent with the presence of adsorbed films on the contacts. An asperity-heating model was applied, from which it was deduced that contact voltages can selectively disassociate adsorbed films from the contact surface while not softening the gold asperity contacts. The results are consistent with the reduced mobility of the adsorbed surface films at cryogenic temperatures.[

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mentioning

confidence: 99%

Cryogenic Performance of RF MEMS Switch Contacts

Brown

Morris²,

Kingon

et al. 2008

J. Microelectromech. Syst.

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“…One package implementation of SAW filters [6], MEMS switches and filters [7], and FBAR [8] are important research topics to minimize the size of RF filters. Variable center frequency/bandwidth LC filters [9] are also being researched.…”

Section: Multi-standard Receiver Architecturementioning

confidence: 99%

Design of reconfigurable RF front-end for multi-standard receiver using switchable passive networks

Kim¹,

Jang²,

Yoo³

2006

Analog Integr Circ Sig Process

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For successful implementation of a multistandard receiver, a reconfigurable receiver architecture and a reconfigurable component design technique are essential. In this paper, an adaptable receiver architecture and a reconfigurable RF design technique using a switchable passive network are proposed. To verify the proposed design technique, the reconfigurable mixer and QVCO are designed using a flexible matching network and flexible LC tank, respectively. The measurement results of each component well prove the usefulness of the switchable passive network.

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“…For example, when multiple microwave receivers operate simultaneously, due to the short distance, they will interfere with each other. Severe, can lead to the channel can not be used due to obstruction [1]. Currently, most of the receivers using fixed bandwidth band pass filter bank groups in the front-end RF circuit to improve anti-jamming capability [2], But When a wide frequency band received, this design will lead to surge in the number of filters that is not conducive to cost control and compact design of the receiver.…”

Section: Introductionmentioning

confidence: 99%

Design of a Electrically Tunable Filter for RF Front-end Circuitry of the Microwave Receiver

Wu¹,

Shen²,

Zhang³

et al. 2015

Proceedings of the 2015 International Conference on Mechatronics, Electronic, Industrial and Control Engineering

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Abstract-The electrically tunable filter for the RF front-end circuitry of the microwave receiver is designed to the performance with low insertion loss, low volatility band, high signal selection and superior adjacent channel interference. This paper presents a design scheme of a 225 to 500 MHz electrically tunable filter. The design uses the capacitive coupled double tuned resonant circuit than can make the signal has a higher selectivity at the resonant frequency and the varactor-BBl78 is chosen in order to achieve tuning characteristics of the electrical filter. Based on the principle of power transfer filter and variable capacitance diode characteristics, a theoretical analysis was made for the influence to the important indexes of the frequency Variation to the electric adjustable filter insertion loss and rectangle coefficient. The circuit design is optimized simulation by Professional simulation software ADS and the filter waveform at different resonant frequencies was received. Designed by the program, the filter's 3dB bandwidth is greater than 10MHz, stop-band attenuation is greater than 30dB, insertion loss is less than 7dB, standing wave ratio (VSWR) is less than 1.5, can effectively improve the signal to noise ratio of the receiver, and can solve the problem of interference and electromagnetic compatibility when multiple radio equipment work at the same time.

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Highly-Selective Electronically-Tunable Cryogenic Filters Using Monolithic, Discretely-Switchable MEMS Capacitor Arrays

Cited by 39 publications

References 7 publications

Cryogenic Performance of RF MEMS Switch Contacts

Cryogenic Performance of RF MEMS Switch Contacts

Design of reconfigurable RF front-end for multi-standard receiver using switchable passive networks

Design of a Electrically Tunable Filter for RF Front-end Circuitry of the Microwave Receiver

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