Cavity coupling structure for planar oscillators showing DR-like reflective characteristics

Kim, N.; Kwon, Youngwoo

doi:10.1049/el:20020170

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“…By connecting a small stub in shunt with the feed line, a 13% increment in the bandwidth was reported. In [6], the bandwidth of the patch antenna was enhanced by using an active matching circuit. By etching different types of slots, slits and parasitic patches in the radiating element, the bandwidth of the conventional patch antenna can also be enhanced.…”

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

confidence: 99%

“…Conventional SIW resonators used in series‐feedback oscillator are absorptive cavities where the signal is absorbed by the cavity at the resonance frequency. To satisfy the oscillation condition at the desired resonance frequency, the resonator with reflective‐type property is more preferable for oscillator application . In , the SIW resonator technology has also been employed in push‐push oscillator.…”

Section: Introductionmentioning

confidence: 99%

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

confidence: 99%

Section: Introductionmentioning

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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Cavity coupling structure for planar oscillators showing DR-like reflective characteristics

Cited by 1 publication

References 1 publication

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

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

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Cavity coupling structure for planar oscillators showing DR-like reflective characteristics

Cited by 1 publication

References 1 publication

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

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

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

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