Composite right-/left-handed transmission line stub resonators for X-band low phase-noise oscillators

Shinichi Tanaka, Hiroki Nishizawa, Kei Takata

研究成果: Article

抄録

This paper describes a novel composite right-/left-handed (CRLH) transmission line (TL) stub resonator for X-band low phase-noise oscillator application. The bandpass filter type resonator composed only of microstrip components exhibits unloaded-Q exceeding that of microstripline resonators by engineering the dispersion relation for the CRLH TL. Two different types of stub resonator using identical and non-identical unitcells are compared. Although the latter type was found to be superior to the former in terms of spurious frequency responses and the circuit size, care was taken to prevent the parasitic inductances distributed in the interdigital capacitors from impeding the Q-factor control capability of the resonator. The stub resonator thus optimized was applied to an 8.8-GHz SiGe HBT oscillator, which achieved a phase-noise of -134 dBc/Hz at 1-MHz offset despite the modest dielectric loss tangent of the PCB laminate used as the substrate of the circuit.

元の言語English
ページ(範囲)734-743
ページ数10
ジャーナルIEICE Transactions on Electronics
E101C
発行部数10
DOI
出版物ステータスPublished - 2018 10 1

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Phase noise
Resonators
Electric lines
Composite materials
Networks (circuits)
Polychlorinated Biphenyls
Heterojunction bipolar transistors
Dielectric losses
Bandpass filters
Polychlorinated biphenyls
Inductance
Frequency response
Laminates
Capacitors
Substrates

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

これを引用

Composite right-/left-handed transmission line stub resonators for X-band low phase-noise oscillators. / Tanaka, Shinichi; Nishizawa, Hiroki; Takata, Kei.

:: IEICE Transactions on Electronics, 巻 E101C, 番号 10, 01.10.2018, p. 734-743.

研究成果: Article

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AB - This paper describes a novel composite right-/left-handed (CRLH) transmission line (TL) stub resonator for X-band low phase-noise oscillator application. The bandpass filter type resonator composed only of microstrip components exhibits unloaded-Q exceeding that of microstripline resonators by engineering the dispersion relation for the CRLH TL. Two different types of stub resonator using identical and non-identical unitcells are compared. Although the latter type was found to be superior to the former in terms of spurious frequency responses and the circuit size, care was taken to prevent the parasitic inductances distributed in the interdigital capacitors from impeding the Q-factor control capability of the resonator. The stub resonator thus optimized was applied to an 8.8-GHz SiGe HBT oscillator, which achieved a phase-noise of -134 dBc/Hz at 1-MHz offset despite the modest dielectric loss tangent of the PCB laminate used as the substrate of the circuit.

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