Please use this identifier to cite or link to this item: http://localhost/handle/Hannan/541497
Title: Formulation of a Dual-Tapped Microstrip Resonator VCO
Authors: Mitsubishi Electr. Corp., Kanagawa, Japan;Tsuru, Masato ; Nishida, Keisuke ; Kawakami, Kenji ; Yamaguchi, Daisuke ; Komaki, M. ; Taniguchi, E. ; Hieda, Morishige
subject: microstrip resonators; microwave oscillators; phase noise; voltage-controlled oscillators; bandwidth 11.86 GHz to 12.09 GHz; dual-tapped microstrip resonator; low phase-noise; optimized Q-factor; planar X-band VCO; voltage-controlled oscillator; Bandwidth; Microstrip resonators; Phase noise; Resonant frequency; Voltage-controlled oscillators; Dual tapped; microstrip; resonators; voltage-controlled oscillators (VCOs);
Year: 2014
Publisher: IEEE
Abstract: This paper provides a formulation of the dual-tapped microstrip resonator. The formulation derives the Q-factor of the resonator, and the maximum value of the Q-factor while still satisfying oscillation conditions. It is shown that the optimized Q-factor can be determined without changing the resonant frequency bandwidth. The phase-noise performance of a voltage-controlled oscillator (VCO) using a dual-tapped microstrip resonator can therefore be designed independent of the design of the oscillation bandwidth. This feature results in simple design of low phase-noise VCOs while maintaining the desired oscillation bandwidth. Experimental results of an X-band VCO employing the dual-tapped microstrip resonator verify the theoretical findings. The fabricated X-band VCO achieves an oscillation bandwidth of 11.86-12.09 GHz and phase noise lower than -114.4 dBc/Hz at 100-kHz offset from the carrier. This VCO is one of the most low phase-noise planar X-band VCOs published to date.
URI: http://localhost/handle/Hannan/269506
http://localhost/handle/Hannan/541497
ISSN: 0018-9480
volume: 62
issue: 11
Appears in Collections:2014

Files in This Item:
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6917223.pdf2.57 MBAdobe PDF
Title: Formulation of a Dual-Tapped Microstrip Resonator VCO
Authors: Mitsubishi Electr. Corp., Kanagawa, Japan;Tsuru, Masato ; Nishida, Keisuke ; Kawakami, Kenji ; Yamaguchi, Daisuke ; Komaki, M. ; Taniguchi, E. ; Hieda, Morishige
subject: microstrip resonators; microwave oscillators; phase noise; voltage-controlled oscillators; bandwidth 11.86 GHz to 12.09 GHz; dual-tapped microstrip resonator; low phase-noise; optimized Q-factor; planar X-band VCO; voltage-controlled oscillator; Bandwidth; Microstrip resonators; Phase noise; Resonant frequency; Voltage-controlled oscillators; Dual tapped; microstrip; resonators; voltage-controlled oscillators (VCOs);
Year: 2014
Publisher: IEEE
Abstract: This paper provides a formulation of the dual-tapped microstrip resonator. The formulation derives the Q-factor of the resonator, and the maximum value of the Q-factor while still satisfying oscillation conditions. It is shown that the optimized Q-factor can be determined without changing the resonant frequency bandwidth. The phase-noise performance of a voltage-controlled oscillator (VCO) using a dual-tapped microstrip resonator can therefore be designed independent of the design of the oscillation bandwidth. This feature results in simple design of low phase-noise VCOs while maintaining the desired oscillation bandwidth. Experimental results of an X-band VCO employing the dual-tapped microstrip resonator verify the theoretical findings. The fabricated X-band VCO achieves an oscillation bandwidth of 11.86-12.09 GHz and phase noise lower than -114.4 dBc/Hz at 100-kHz offset from the carrier. This VCO is one of the most low phase-noise planar X-band VCOs published to date.
URI: http://localhost/handle/Hannan/269506
http://localhost/handle/Hannan/541497
ISSN: 0018-9480
volume: 62
issue: 11
Appears in Collections:2014

Files in This Item:
File SizeFormat 
6917223.pdf2.57 MBAdobe PDF
Title: Formulation of a Dual-Tapped Microstrip Resonator VCO
Authors: Mitsubishi Electr. Corp., Kanagawa, Japan;Tsuru, Masato ; Nishida, Keisuke ; Kawakami, Kenji ; Yamaguchi, Daisuke ; Komaki, M. ; Taniguchi, E. ; Hieda, Morishige
subject: microstrip resonators; microwave oscillators; phase noise; voltage-controlled oscillators; bandwidth 11.86 GHz to 12.09 GHz; dual-tapped microstrip resonator; low phase-noise; optimized Q-factor; planar X-band VCO; voltage-controlled oscillator; Bandwidth; Microstrip resonators; Phase noise; Resonant frequency; Voltage-controlled oscillators; Dual tapped; microstrip; resonators; voltage-controlled oscillators (VCOs);
Year: 2014
Publisher: IEEE
Abstract: This paper provides a formulation of the dual-tapped microstrip resonator. The formulation derives the Q-factor of the resonator, and the maximum value of the Q-factor while still satisfying oscillation conditions. It is shown that the optimized Q-factor can be determined without changing the resonant frequency bandwidth. The phase-noise performance of a voltage-controlled oscillator (VCO) using a dual-tapped microstrip resonator can therefore be designed independent of the design of the oscillation bandwidth. This feature results in simple design of low phase-noise VCOs while maintaining the desired oscillation bandwidth. Experimental results of an X-band VCO employing the dual-tapped microstrip resonator verify the theoretical findings. The fabricated X-band VCO achieves an oscillation bandwidth of 11.86-12.09 GHz and phase noise lower than -114.4 dBc/Hz at 100-kHz offset from the carrier. This VCO is one of the most low phase-noise planar X-band VCOs published to date.
URI: http://localhost/handle/Hannan/269506
http://localhost/handle/Hannan/541497
ISSN: 0018-9480
volume: 62
issue: 11
Appears in Collections:2014

Files in This Item:
File SizeFormat 
6917223.pdf2.57 MBAdobe PDF