A C-band tunable oscillator based on complementary coupled resonator using substrate integrated waveguide cavity

A novel EMPIMC (evanescent-mode phase-injection mode-coupled metamaterial resonator) based tunable signal sources is discussed for the applications in portable and test & measurement equipment applications. The reported paper features tunable multi-band oscillators with significantly reduced size and power consumption compared to separate oscillators for use in multiple bands, multi-mode wireless communication systems. With the development of the MMIC fabrication techniques and the broad application of this artificial material, metamaterial technology is a promising alternative to high frequency planar VCO solutions for current and later generation radio communication systems.

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“…The convention resonator is excited at its differential mo [27,33]. f a conventional the equivalent nal coupled line de (Fig.…”

Section: Negative Index Printed Rementioning

confidence: 99%

“…As shown in Figure 2, the MNG material ( > 0 and μ < 0) exhibits evanescent mode propagation dynamics. The propagation constant 'k z ' for the electromagnetic wave propagation in + ve z-axis is given by [30]- [33] ( 7) if then…”

Section: A Evanescent-mode Propagationmentioning

confidence: 99%

Evanescent-mode phase-injection mode-coupled (EMPIMC) metamaterial resonator based tunable signal sources

Poddar

Rohde

2014

Wamicon 2014

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“…Techniques such as (i) impedance matching network, (ii) patch geometry modification, (iii) defected ground structures, and (iv) use of metamaterial resonators have also been reported for bandwidth enhancement of microstrip patch antennas. For example, in [5], a proximity-couple feeding structure is introduced to elevate the bandwidth. By connecting a small stub in shunt with the feed line, a 13% increment in the bandwidth was reported.…”

Section: This Work Was Supported By the Fundamental Research Funds Fomentioning

confidence: 99%

A K‐band push–push oscillator employing differential transmission line loaded with SIW cavity operated in TM₁₁₀ mode

Liu

Bao

2016

Micro & Optical Tech Letters

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In this letter, a novel differential transmission‐line (TL) loaded with circular substrate integrated waveguide (SIW) cavity is presented for realizing K‐band push‐push oscillator. The SIW cavity is working at TM110 mode to enforce the 180° phase difference between two sub‐oscillators, and the tuning metal vias perturbation is introduced in the SIW resonator to maximize the distance between desired odd TM110 mode and adjacent even modes to stabilize the oscillation mode. Unlike the conventional SIW resonator structure, this differential TL possesses a reflective‐type property at the resonance frequency. A 19.76 GHz push–push oscillator based on this differential TL is designed and implemented. The measured suppression of fundamental frequency component is −25.62 dBc, and the phase noise is −118.1 dBc Hz−1 at 1 MHz offset frequency, which corresponds to a figure‐of‐merit (FOM) of −191 dBc Hz−1. © 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 58:1217–1221, 2016

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“…Compared with conventional microstrip resonator, the SIW resonators exhibit higher unloaded quality factor. Therefore, a lot of researches have been concentrated on the employment of SIW in microwave oscillators based on series feedback and parallel feedback configurations. In most of the series feedback SIW oscillators, the SIW cavity is directly connected to a negative device through a microstrip line structure, which behaves as a parallel resonance tank and exhibits a trough at resonance frequency in reflection coefficient.…”

Section: Introductionmentioning

confidence: 99%

A phase noise reduction method in microwave oscillator using a high-Q transmission line loaded with active SIW resonator

Liu

Bao

2015

Microw. Opt. Technol. Lett.

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In this letter, a transmission line (TL) loaded with active circular substrate integrated waveguide (SIW) resonator is presented and used in microwave oscillator to reduce phase noise. By compensating the resonance loss in SIW cavity using coupling negative resistance method in active resonator, the TL loaded with active SIW resonator exhibits a sharp reflective property at the fundamental mode resonance frequency which is suitable for series feedback oscillator. The simulated loaded Q‐factor of the proposed TL achieves 379. To validate this method, X‐band oscillators using TL loaded with active and passive SIW resonator are designed and implemented. The measured results show that the oscillator base on active SIW resonator exhibits a low phase noise of −128.75 dBc/Hz at 1 MHz offset frequency from 11.01 GHz carrier, which is 9 dB better than the oscillator based on passive SIW resonator. © 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 58:221–225, 2016

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A C-band tunable oscillator based on complementary coupled resonator using substrate integrated waveguide cavity

Cited by 23 publications

References 6 publications

Evanescent-mode phase-injection mode-coupled (EMPIMC) metamaterial resonator based tunable signal sources

Evanescent-mode phase-injection mode-coupled (EMPIMC) metamaterial resonator based tunable signal sources

A K‐band push–push oscillator employing differential transmission line loaded with SIW cavity operated in TM₁₁₀ mode

A phase noise reduction method in microwave oscillator using a high-Q transmission line loaded with active SIW resonator

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A C-band tunable oscillator based on complementary coupled resonator using substrate integrated waveguide cavity

Cited by 23 publications

References 6 publications

Evanescent-mode phase-injection mode-coupled (EMPIMC) metamaterial resonator based tunable signal sources

Evanescent-mode phase-injection mode-coupled (EMPIMC) metamaterial resonator based tunable signal sources

A K‐band push–push oscillator employing differential transmission line loaded with SIW cavity operated in TM110 mode

A phase noise reduction method in microwave oscillator using a high-Q transmission line loaded with active SIW resonator

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Product

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A K‐band push–push oscillator employing differential transmission line loaded with SIW cavity operated in TM₁₁₀ mode