Wideband VCO with triple tuned circuits in C-Ku band

Masaomi Tsuru; Kenji Kawakami; Ken'ichi Tajima; Kazuhiro Miyamoto; Masafumi Nakane; Moriyasu Miyazaki; Tadashi Takagi

doi:10.1109/MWSYM.2005.1517038

Wideband VCO with triple tuned circuits in C-Ku band

Masaomi Tsuru^*, Kenji Kawakami, Ken'ichi Tajima, Kazuhiro Miyamoto, Masafumi Nakane, Moriyasu Miyazaki, Tadashi Takagi

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

6 Citations (Scopus)

Abstract

This paper describes a wide-band Voltage Controlled Oscillator (VCO) with the triple oscillation bandwidth and a better flatness of the phase noise in the oscillation bandwidth using triple varactor-tuned circuits. Altering capacitances of varactor diodes connected to every ports of a HBT in the same direction, the oscillation bandwidth of more than 1.5 octaves has been obtained. A fabricated VCO employing the triple-tuned circuits and a GaAs HBT has covered 1.56 octaves bandwidth achieving the phase noise of -114.9 dBc/Hz ± 2.9 dB at 1 MHz offset from the carrier and the output power of 3.4dBm ± 2 dB in C-Ku band.

Original language	English
Title of host publication	2005 IEEE MTT-S International Microwave Symposium Digest
Pages	1685-1688
Number of pages	4
DOIs	https://doi.org/10.1109/MWSYM.2005.1517038
Publication status	Published - 2005
Externally published	Yes
Event	2005 IEEE MTT-S International Microwave Symposium - Long Beach, CA, United States Duration: 2005 Jun 12 → 2005 Jun 17

Publication series

Name	IEEE MTT-S International Microwave Symposium Digest
Volume	2005
ISSN (Print)	0149-645X

Conference

Conference	2005 IEEE MTT-S International Microwave Symposium
Country/Territory	United States
City	Long Beach, CA
Period	05/6/12 → 05/6/17

Keywords

Broadband communication
Flip-chip devices
Radar applications
Tunable circuits and devices
Varactors
Voltage controlled oscillators

ASJC Scopus subject areas

Radiation
Condensed Matter Physics
Electrical and Electronic Engineering

Access to Document

10.1109/MWSYM.2005.1517038

Cite this

Tsuru, M, Kawakami, K, Tajima, K, Miyamoto, K, Nakane, M, Miyazaki, M & Takagi, T 2005, Wideband VCO with triple tuned circuits in C-Ku band. in 2005 IEEE MTT-S International Microwave Symposium Digest., 1517038, IEEE MTT-S International Microwave Symposium Digest, vol. 2005, pp. 1685-1688, 2005 IEEE MTT-S International Microwave Symposium, Long Beach, CA, United States, 05/6/12. https://doi.org/10.1109/MWSYM.2005.1517038

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title = "Wideband VCO with triple tuned circuits in C-Ku band",

abstract = "This paper describes a wide-band Voltage Controlled Oscillator (VCO) with the triple oscillation bandwidth and a better flatness of the phase noise in the oscillation bandwidth using triple varactor-tuned circuits. Altering capacitances of varactor diodes connected to every ports of a HBT in the same direction, the oscillation bandwidth of more than 1.5 octaves has been obtained. A fabricated VCO employing the triple-tuned circuits and a GaAs HBT has covered 1.56 octaves bandwidth achieving the phase noise of -114.9 dBc/Hz ± 2.9 dB at 1 MHz offset from the carrier and the output power of 3.4dBm ± 2 dB in C-Ku band.",

keywords = "Broadband communication, Flip-chip devices, Radar applications, Tunable circuits and devices, Varactors, Voltage controlled oscillators",

author = "Masaomi Tsuru and Kenji Kawakami and Ken'ichi Tajima and Kazuhiro Miyamoto and Masafumi Nakane and Moriyasu Miyazaki and Tadashi Takagi",

year = "2005",

doi = "10.1109/MWSYM.2005.1517038",

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series = "IEEE MTT-S International Microwave Symposium Digest",

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T1 - Wideband VCO with triple tuned circuits in C-Ku band

AU - Tsuru, Masaomi

AU - Kawakami, Kenji

AU - Tajima, Ken'ichi

AU - Miyamoto, Kazuhiro

AU - Nakane, Masafumi

AU - Miyazaki, Moriyasu

AU - Takagi, Tadashi

PY - 2005

Y1 - 2005

N2 - This paper describes a wide-band Voltage Controlled Oscillator (VCO) with the triple oscillation bandwidth and a better flatness of the phase noise in the oscillation bandwidth using triple varactor-tuned circuits. Altering capacitances of varactor diodes connected to every ports of a HBT in the same direction, the oscillation bandwidth of more than 1.5 octaves has been obtained. A fabricated VCO employing the triple-tuned circuits and a GaAs HBT has covered 1.56 octaves bandwidth achieving the phase noise of -114.9 dBc/Hz ± 2.9 dB at 1 MHz offset from the carrier and the output power of 3.4dBm ± 2 dB in C-Ku band.

AB - This paper describes a wide-band Voltage Controlled Oscillator (VCO) with the triple oscillation bandwidth and a better flatness of the phase noise in the oscillation bandwidth using triple varactor-tuned circuits. Altering capacitances of varactor diodes connected to every ports of a HBT in the same direction, the oscillation bandwidth of more than 1.5 octaves has been obtained. A fabricated VCO employing the triple-tuned circuits and a GaAs HBT has covered 1.56 octaves bandwidth achieving the phase noise of -114.9 dBc/Hz ± 2.9 dB at 1 MHz offset from the carrier and the output power of 3.4dBm ± 2 dB in C-Ku band.

KW - Broadband communication

KW - Flip-chip devices

KW - Radar applications

KW - Tunable circuits and devices

KW - Varactors

KW - Voltage controlled oscillators

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Y2 - 12 June 2005 through 17 June 2005

ER -

Wideband VCO with triple tuned circuits in C-Ku band

Abstract

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Conference

Keywords

ASJC Scopus subject areas

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