Millimeter-Wave Tune-All Bandpass Filters

Mercier, Denis; Orlianges, Jean‐Christophe; Delage, Théo; Champeaux, Corinne; Catherinot, A.; Cros, Dominique; Blondy, Pierre

doi:10.1109/tmtt.2004.825744

Cited by 37 publications

(16 citation statements)

References 17 publications

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“…6, the fundamental frequency varies with different V bias . Based on (8), the fundamental frequency can be reduced by increasing the loading capacitor C total in (13). Thus, the highest (lowest) tunable frequency is determined by the minimum (maximum) value of C total .…”

Section: Analysis and Designmentioning

confidence: 99%

“…The bandpass filter, as a key component in these systems, should also be reconfigurable to meet the system requirements. So far, many reconfigurable bandpass filters with tunability of operation frequency [6][7][8][9][10][11][12][13][14] and passband switching ability [15][16][17][18] have been widely developed. For the tunable filter, the use of semiconductor varactors as variable capacitors has been the most popular choice to modify the effective electrical length of the resonator and to tune the center frequency of the passband.…”

Section: Introductionmentioning

confidence: 99%

“…For the tunable filter, the use of semiconductor varactors as variable capacitors has been the most popular choice to modify the effective electrical length of the resonator and to tune the center frequency of the passband. Recently, much work has concentrated on the development of tunable bandpass filters based on microelectromechanical systems (MEMS) [12][13][14] due to their high quality factor Q. For the switchable bandpass filter, which has integrated a bandpass filter and a switch into single circuit, the most effective design method is to use the PIN diode to control the passband [17].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Tunable and Switchable Bandpass Filters Using Slot-Line Resonators

Chen¹,

Shi²,

Bao³

et al. 2011

PIER

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Abstract-In this paper, novel uniplanar tunable and switchable bandpass filters are designed by using the centrally-loaded slot-line resonator. From the voltage-wave distribution along the resonator, the appropriate location for the loading element is determined to be the center of the slot-line resonator, where the voltages of the fundamental signal and second harmonic are maximum and zero, respectively. As a result, the fundamental frequency can be tuned while the second harmonic remains almost unchanged. For the first time, the properties of the centrally-loaded slot-line resonator are analyzed by using the even-and odd-mode method, and their respective resonant frequencies are derived. The demonstrated tunable bandpass filter can give a 30.9% frequency tuning range with acceptable insertion loss when a varactor is used as the loading element. By replacing the loading varactors with PIN diodes, a switchable bandpass filter is realized in which the attenuation in the fundamental passband can be controlled. In experiments, the switchable bandpass filter exhibits a 2.13 dB insertion loss in the fundamental passband when the PIN diodes are off and more than 49 dB isolation across the passband when the PIN diodes are on.

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Section: Analysis and Designmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Tunable and Switchable Bandpass Filters Using Slot-Line Resonators

Chen¹,

Shi²,

Bao³

et al. 2011

PIER

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“…9 shows the fabricated filter and the tunable center frequency response for different bias voltages supplied to bridge type varactors. The filters in (Mercier et al, 2004) use bridge varactors to adjust all filter design parameters at millimeter waves.…”

Section: Distributed Designsmentioning

confidence: 99%

Reconfigurable Microwave Filters

Llamas-Garro¹,

Brito‐Brito²

2010

Microwave and Millimeter Wave Technologies From Photonic Bandgap Devices to Antenna and Applications

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“…However, dimensions are very large especially in the low frequency range up to few hundreds of MHz. The micromachined resonators [15][16][17][18][19] can be realised in dimensions that are order of magnitude smaller than cavity resonators, at the same time, meeting the high quality requirements in addition to low loss and high linearity.…”

Section: Mems Resonatorsmentioning

confidence: 99%

Radio Frequency Microelectromechanical Systems in Defence and Aerospace

Sastry

2009

DSJ

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For all onboard systems applications, it is important to have very low-loss characteristics and low power consumption coupled with size reduction. The controls and instrumentation in defence and aerospace continually calls for newer technologies and developments. One such technology showing remarkable potential over the years is radio frequency microelectromechanical systems (RF MEMS) which have already made their presence felt prominently by offering replacement in radar and communication systems with high quality factors and precise tunability. The RF MEMS components have emerged as potential candidates for defence and aerospace applications. The core theme of this paper is to drive home the fact that the limitations faced by the current RF devices can be overcome by the flexibility and better device performance characteristics of RF MEMS components, which ultimately propagate the device level benefits to the final system to attain the unprecedented levels of performance.Keywords: RF MEMS, microsystems, MEMS in defence, MEMS in aerospace, instrumentation, RF systems, micromechanical components 568Celebrating Sixty Years of Publication SASTRY: RADIO FREQUENCY MICROELECTROMECHANICAL SYSTEMS IN DEFENCE AND AEROSPACE 569Celebrating Sixty Years of Publication conventional components fall apart 6 . This provides the ability to fine tune the circuits to the best optimum level and achieve the highest performance. Re-configurability is another desirable feature used to reconfigure the same antennas for various frequencies without shifting from one antenna to another. This helps in faster scanning and better directivity of the antennas. The switches, which are characterized by very low loss, low actuation voltages and better reliability are widely used for reconfiguring the antennas, routing networks, tunable filters, etc. The RF MEMS devices have extremely high linearity, which means that these create less harmonics and this feature makes them excellent candidates for broad band communication system applications, especially needing high dynamic range of operation. Tunable CapacitorsThe standard semiconductor IC technology can provide a fixed capacitance with a sandwiched dielectric layer between two conductive electrodes In this case, the parasitic capacitance and the series resistance will result in losses and reduction

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Millimeter-Wave Tune-All Bandpass Filters

Cited by 37 publications

References 17 publications

Tunable and Switchable Bandpass Filters Using Slot-Line Resonators

Tunable and Switchable Bandpass Filters Using Slot-Line Resonators

Reconfigurable Microwave Filters

Radio Frequency Microelectromechanical Systems in Defence and Aerospace

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