A Low Phase Noise Feedback Oscillator Based on SIW Bandpass Response Power Divider

Zhang, Ruoqiao; Zhou, Jianyi; Yu, Zhiqiang; Yang, Binqi

doi:10.1109/lmwc.2018.2791569

Cited by 27 publications

(15 citation statements)

References 9 publications

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“…Ref [13] presents an oscillator using a SIW dual-mode bandpass filter, whose oscillation frequency is 11.571 GHz and phase noise is −117.3 dBc/ Hz at 100 kHz offset. In [14], a low phase noise X-band oscillator is presented, in which a bandpass power divider embedded in a SIW filter is utilized. Its oscillation frequency is 10.98 GHz and the phase noise is −121.6 dBc/Hz at 100 kHz offset.…”

Section: Introductionmentioning

confidence: 99%

Low phase noise microwave oscillator with greater than 60 dB second‐harmonic suppression

Yang²,

Yang

et al. 2021

IET Microwaves Antenna & Prop

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This study presents a microwave oscillator in which an innovative hybrid microstrip and substrate integrated waveguide filter is proposed for phase noise reduction. By virtue of equivalent circuit, the specific topology of this filter is clearly revealed and verified by both the simulation and the experiment. It can realize a third-order elliptic bandpass response with two transmission zeros near the passband. Specific phase response can be formed, in which a high group delay can be achieved within a narrow frequency range around the centre frequency. This feature makes the filter performance very flexible for its application in microwave oscillator, and then reduces its phase noise. For demonstration, an oscillator example at 9.0 GHz was deigned, fabricated and measured. The measured phase noise at 100 kHz away from the oscillation frequency is as low as −120.06 dBc/Hz. Furthermore, the proposed oscillator is featured by greater than 60 dB second-harmonic suppression and at least the third harmonic is suppressed.This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.

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Section: Introductionmentioning

confidence: 99%

Low phase noise microwave oscillator with greater than 60 dB second‐harmonic suppression

Yang²,

Yang

et al. 2021

IET Microwaves Antenna & Prop

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“…Various techniques have been used to reduce the size of SIW based antennas, filters, power dividers, etc. [7][8][9][10][11]. A half-mode SIW (HMSIW), which occupies half the area of its full mode counterpart, is first introduced in [7] and later used in [8] to design compact SIW power divider.…”

Section: Introductionmentioning

confidence: 99%

“…Similarly, quarter-mode SIW (QMSIW) is used to miniaturize the antenna [9]. Also, QMSIW and 1/8th mode SIW (EMSIW) are used in [10,11] for miniaturization of SIW based devices without affecting the performance. The size of power divider is further reduced by using direct coaxial feeding, thereby eliminating the need for microstrip to SIW transition [13][14][15].…”

Section: Introductionmentioning

confidence: 99%

DESIGN OF A COMPACT 4-WAY POWER DIVIDER USING 1/64<sup>th</sup> MODE ELLIPTICALLY CURVED SIW RESONATORS

Ali¹,

Sharma²,

Yadav³

2020

PIER Letters

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A novel compact 4-way power divider is presented here, which consists of 1/64 th mode elliptically curved substrate integrated waveguide (SIW) resonators and radial transmission lines. A direct coaxial fed circular patch acting as a radial transmission line is connected with four elliptically curved 1/64 th mode SIW resonators, and these resonators are then connected to output terminals. An equivalent circuit model is developed to understand its behavior. It is designed to operate at 3.6 GHz covering the frequencies assigned for 5G in sub-6 GHz band. Conventional PCB techniques are used to fabricate the prototype. The measured bandwidth is 2.2 GHz, ranging from 2.5 GHz to 4.7 GHz, for which the return loss is less than −10 dB. Also, the transmission coefficient between input and each output for the above-mentioned frequency band is −6.4 ± 0.5 dB. It has a very compact footprint of 0.32λ 2 g , which is at least 40% smaller than various SIW based state of the art power dividers.

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“…The dielectric resonator (DR) is a popular device because of its high‐Q characteristic. However, since it has a three‐dimensional (3‐D) structure, it is not only limited to the circuit integration but also is not adequate for mass production …”

Section: Introductionmentioning

confidence: 99%

“…However, since it has a threedimensional (3-D) structure, it is not only limited to the circuit integration but also is not adequate for mass production. 2 The metamaterial technique is possible for small size design on the planar structure which is called the zero-orderresonant (ZoR) method. 3 The kinds of metamaterials has ENZ (ε-Near-Zero), MNZ (μ-Near-Zero), and CRLH (Composite Right/Left Handed).…”

Section: Introductionmentioning

confidence: 99%

A compact low‐phase noise oscillator using π‐network and complimentary μ‐near zero metamaterial resonator

Yoon

Ahn

Lee

2018

Micro & Optical Tech Letters

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In this article, the X‐band low‐phase noise oscillator based on a μ‐near zero (MNZ) metamaterial resonator is presented. The MNZ resonator has small size and high loaded quality factor (QL) and the oscillator has low‐phase noise due to high‐QL. Also, the proposed resonator is composed of complimentary structure which consists of spur‐line and meander‐line. The measured QL of a new resonator is 213 at resonant frequency of 10 GHz and the output power and second harmonics suppression are 14.43 dBm and −30.65 dBc, respectively. The measurement result for phase noise is −101.71 dBc/Hz at 100 kHz offset.

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A Low Phase Noise Feedback Oscillator Based on SIW Bandpass Response Power Divider

Cited by 27 publications

References 9 publications

Low phase noise microwave oscillator with greater than 60 dB second‐harmonic suppression

Low phase noise microwave oscillator with greater than 60 dB second‐harmonic suppression

DESIGN OF A COMPACT 4-WAY POWER DIVIDER USING 1/64<sup>th</sup> MODE ELLIPTICALLY CURVED SIW RESONATORS

A compact low‐phase noise oscillator using π‐network and complimentary μ‐near zero metamaterial resonator

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