Passive microwave receive filter networks using low-Q resonators

Hunter, I.C.; Guyette, Andrew C.; Pollard, R.D.

doi:10.1109/mmw.2005.1511913

Cited by 46 publications

(20 citation statements)

References 14 publications

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“…It is known that some advanced research work is ongoing into the synthesis of lossy filters [42]- [47] which are used to compensate for a low resonator Q and give very linear in-band performance but at the expense of a high-ish insertion loss (not a real problem in low-power circuits). Also, some work is ongoing into the synthesis of coupling matrices for wideband devices, where the coupling elements have a frequency dependency [48].…”

Section: Discussionmentioning

confidence: 99%

Advanced Filter Synthesis

Cameron

2011

IEEE Microwave

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Section: Discussionmentioning

confidence: 99%

Advanced Filter Synthesis

Cameron

2011

IEEE Microwave

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“…This approach flattens the pass band of the transmission response by absorption of energy instead of reflection as a predistortion case. This synthesis was presented in [3] and fully detailed in [11]. The resulting passband flatness is that of a loss less filter, which is much better than that set in Table I.…”

Section: Ims 2010mentioning

confidence: 99%

Comparison of lossy filters and predistorted filters using novel software

Padilla

Mateu

Collado

et al. 2010

2010 IEEE MTT-S International Microwave Symposium

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-This paper compares several synthesis alternatives for a 4GHz filter with 36 MHz bandwidth. The alternatives considered are: classical synthesis, various forms of pre distortion and lossy filter synthesis. Electrical performance of the various alternatives is discussed in detail and a brief description of the topologies is also given.The synthesis of the several alternatives presented in this paper has been performed with a novel software that generates the desired transfer response, obtains the filter transverse coupling matrix and transforms it into other topologies of technological interest. The paper includes a brief description of the software features.

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“…In general, resonators in RF/microwave can be used in many applications such as antennas [1][2][3] filters [4][5], switches [6][7], amplifier [8], absorber [9] and others. These resonators are generally realized using microstrip technology where they can be implemented in different shape and size such as transmission line [10], radial [8], ring [3], [9], metamaterial [11] and coupled line [12].…”

Section: Introductionmentioning

confidence: 99%

Analysis of Open Stub Resonator and its Application in Dual Isolation Band of SPDT Switch Design

Algumaei

Shairi

Zakaria

et al. 2016

IJECE

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In this paper, an analysis of open stub resonator is presented and its application in dual isolation band of Single Pole Double Throw (SPDT) switch is proposed. A mathematical model and the characteristic of the bandstop of the resonator were analyzed and discussed. The open stub resonator was implemented using the microstrip transmission line and able to switch between bandstop and allpass responses. Frequency bands of 2.3 and 3.5 GHz were chosen to demonstrate the dual isolation band in the switch design. The performance results of the SPDT switch showed that the isolation was greater than 30 dB, return loss was greater than 10 dB and insertion loss less than 2 dB at the center resonant frequency of 2.3 and 3.5 GHz. The potential application of the proposed dual isolation band of SPDT switch is for multi band RF front-end system such as WiMAX, LTE, WiFi and HyperLAN. Keyword:Bandstop to allpass Open stub resonator RF/Microwave switch SPDT switch Transmission line stub

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Passive microwave receive filter networks using low-Q resonators

Cited by 46 publications

References 14 publications

Advanced Filter Synthesis

Advanced Filter Synthesis

Comparison of lossy filters and predistorted filters using novel software

Analysis of Open Stub Resonator and its Application in Dual Isolation Band of SPDT Switch Design

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