Results 271 to 280 of about 139,447 (303)
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Fast Electronically Tunable Filter Bank
MILCOM 2005 - 2005 IEEE Military Communications Conference, 2005This article shows a new electronically tunable filter bank. The main characteristics are: wide frequency range, 6 to 18GHz, compact size and fast response within the temperature range of -40/spl deg/ C to 75/spl deg/ C. To achieve these objectives the filter bank is built using HMIC and MMIC technology.
M.S. Ruiperez +3 more
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‘Shadow’ Filters—A New Family of Electronically Tunable Filters
IETE Journal of Education, 2010It is shown that the ‘shadow’ filter, introduced recently by Lakys and Fabre, is capable of achieving not only a constant bandwidth bandpass filter, but also several other interesting characteristics depending upon the choice of the desired output port and the port from which feedback signal is derived.
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Adaptively-tunable RF photonic filters
2015 IEEE 58th International Midwest Symposium on Circuits and Systems (MWSCAS), 2015The emergence of silicon photonics has enabled potential implementations of RF photonic filters with the size, weight, and power requirements of radio systems with small form factors. This paper presents a fourth-order elliptic digital filter designed in the optical domain with all-pass filter (APF) unit cells. A monitor-based adaptive tuning algorithm
Shengchang Cai +5 more
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Narrowband tunable photonic notch filter
Optics Letters, 2009We propose a technique for realization of a high-contrast, tunable, low-insertion-loss notch filter using polarization selectivity of whispering-gallery-mode resonators. We demonstrate a 10 MHz filter with 5.5 dB insertion loss and 45.5 dB of in-band rejection. The measured rejection value is limited by the finite (3 kHz) linewidth of our laser.
A A, Savchenkov +5 more
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A Microstrip Nonreciprocal Tunable YIG Filter
IEEE Journal of Solid-State Circuits, 1968A nonreciprocal tunable YIG filter in a microstrip configuration has been constructed which makes use of a novel method of generating a circularly, polarized field in the plane of a microstrip circuit. Nonreciprocities in excess of 40 dB have been obtained at X band with relatively low insertion loss and VSWR.
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A microstrip bandpass filter with 2 independently tunable transmission zeros
Microwave and Optical Technology Letters, 2020Fei Cheng, Ping Lu, Kama Huang
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Substrate integrated waveguide filter based on the magnetized ferrite with tunable capability
Microwave and Optical Technology Letters, 2021Morteza Mohammadi Shirkolaei
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Multilayer Planar Tunable Filter With Very Wide Tuning Bandwidth
IEEE Transactions on Microwave Theory and Techniques, 2011Jim S Sun, Yves Baeyens, Tatsuo Itoh
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MEMS-Based Tunable LC Bandstop Filter With an Ultra-Wide Continuous Tuning Range
IEEE Microwave and Wireless Components Letters, 2009Dong-Hoon Choi, Jun-Bo Yoon
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