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Tunable Dual-Freque...
Tunable Dual-Frequency Interference Suppression Circuit with GaN MMIC Delay Lines
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- Robinson, Megan C. (author)
- University of Colorado at Boulder
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- Lasser, Gregor, 1983 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Popovic, Zoya (author)
- University of Colorado at Boulder
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(creator_code:org_t)
- 2023
- 2023
- English.
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In: 2023 53rd European Microwave Conference, EuMC 2023. ; , s. 247-250
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Abstract
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- This paper presents a broadband interference suppression circuit covering the 2-4 GHz octave. The circuit is capable of placing simultaneously two notches within the band with tunable center frequencies. A hybrid four-branch interferometer topology with gain incorporates GaN MMIC loaded tunable transmission-line delays. The circuit reduces the power of interfering signals by at least 10 dB, while amplifying the desired signal by as much as 18 dB. The overall circuit had a NF of 5-8.5dB across the band. This technique lends itself to produce sharp notches without the requirement of high-Q resonators, so implementations on low complexity PCBs is feasible.
Subject headings
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Signalbehandling (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Signal Processing (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Annan elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Other Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
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