An easy-to-use FET DRO design procedure suited to most CAD programs

Wilson, Peter G.; Carver, R.D.

doi:10.1109/mwsym.1989.38899

Cited by 37 publications

(8 citation statements)

References 2 publications

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“…The DGS dimension barely affects the dimension of the microstrip line located on the top of the substrate when applied to oscillators. Since the Q factor of the resonator determines the phase noise dominantly, most of working has been performed by people focusing on the increase of Q factor of the resonator [14,15].…”

Section: A Voltage-controlled Oscillator Using Defected Ground Strmentioning

confidence: 99%

A Direct Down-conversion System Using Sub-harmonic Mixer with Microstrip Lines

Lin¹,

Ko²,

Hsu³

et al. 2017

Proceedings of the 2017 2nd International Conference on Automation, Mechanical and Electrical Engineering (AMEE 2017)

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Abstract-The purpose of this paper is to design a direct downconversion system using sub-harmonic mixer with microstrip lines, it is also called a zero intermediate frequency system. By utilizing the direct conversion configuration, it can not only avoid to use an additional voltage controlled oscillator and phaselocked loop which resulted from twice down conversions so as to simplify the configuration and reduce cost, but also suppress the mirror image frequency, and thus to diminish non-linear conversion distortion and to increase the receive dynamic range. The LO-RF and LO-IF isolations of sub-harmonic mixer with microstrip lines are greater than 60 dB, and the conversion loss is about 14 dB; the phase noise of VCO with spiral-shaped defected ground structure (DGS) is -96 dBc/Hz at 10 kHz. We have succeeded to develop a direct down-conversion system.

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Section: A Voltage-controlled Oscillator Using Defected Ground Strmentioning

confidence: 99%

A Direct Down-conversion System Using Sub-harmonic Mixer with Microstrip Lines

Lin¹,

Ko²,

Hsu³

et al. 2017

Proceedings of the 2017 2nd International Conference on Automation, Mechanical and Electrical Engineering (AMEE 2017)

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“…본 논문에서는 주파수 안정도를 높이고 고조 파 발생을 억제하기 위해 마이크로스트립 종단형 CSRR구조를 이용한 전압제어 발진기를 제안하였다. 발진기 모델에서 발진조건은 다음과 같다 [10].…”

Section: 고조파를 억제하기 위해 발진기의 후단에 필터를 사용 하지만 필터를 사용하면 회로의 사이즈가 커지고 발진 기의unclassified

Design of Voltage Controlled Oscillator for X-band Radar Using CSRR loaded microstrip line

Kim¹

2013

The Journal of the Korea institute of electronic communication

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In this paper, a novel voltage controlled oscillator(VCO) using CSRR loaded microstrip line for X-band RADAR is proposed. Using the microstrip line loaded CSRR inserted between the oscillator and buffer to the filter, the harmonic suppression has been improved. The measured results of the fabricated oscillator shows that its oscillation frequencies are from 9.28 to 9.39GHz according to the tuning voltage 0 ∼ 10V, its output power level are about 16.6dBm at 9.35GHz. Compared with VCO using the conventional VCO, VCO using CSRR loaded microstirp, the harmonic suppression characteristic has been improved in 10.4dB 키워드 Oscillator, Low Noise, Resonator, Radar

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Section: Introductionmentioning

confidence: 99%

“…The most popular method to reduce the phase noise is to employ high resonator or to improve loaded quality factor [1]- [4]. Dielectric resonators have been widely used for this purpose [1], but these are not adequate for the monolithic microwave integrated circuits (MMIC) because they have a three-dimensional (3-D) structure. To overcome this problem, fully planar type resonators have been developed to be applied in an MMIC and to improve the quality factor and resulting phase noise of an oscillator [2], [3].…”

Section: Introductionmentioning

confidence: 99%

A compact-size microstrip spiral resonator and its application to microwave oscillator

Lee

Lim

Kim

et al. 2002

IEEE Microw. Wireless Compon. Lett.

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This letter presents a compact size microstrip spiral resonator and its application to a low phase noise oscillator. This resonator has stopband characteristics to be used in the series feedback oscillator topology. The whole circuit area of the proposed resonator is within 1/10 wavelength, which results in the reduction of the circuit area and cost. A 10-GHz oscillator incorporated with this resonator was designed, fabricated and measured. It shows low phase noise performance of 95.4-dBc/Hz at 100 kHz offset.Index Terms-Microstrip spiral resonator, oscillator, phase noise.

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An easy-to-use FET DRO design procedure suited to most CAD programs

Cited by 37 publications

References 2 publications

A Direct Down-conversion System Using Sub-harmonic Mixer with Microstrip Lines

A Direct Down-conversion System Using Sub-harmonic Mixer with Microstrip Lines

Design of Voltage Controlled Oscillator for X-band Radar Using CSRR loaded microstrip line

A compact-size microstrip spiral resonator and its application to microwave oscillator

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