Harmonic suppression of microstrip ring resonator using double spurlines

Angkawisittpan, Niwat

doi:10.5897/ijps11.1138

Cited by 7 publications

(5 citation statements)

References 16 publications

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“…Oscillations can happen if the perimeter of the ring equals to the wavelength or the wavelength multiplied by an integer [5]. Spurline was proposed by Bates to generate bandstop filters (BSFs) [6].…”

Section: Related Workmentioning

confidence: 99%

“…One big issue of microwave BPFs is their spurious harmonics [2][3][4], which can deteriorate their stopband performance and generate electromagnetic interference. The microstrip ring resonator is a very narrow band BPF [5], and it is widely used in microwave systems. In this paper, two spurlines are added into the feeding lines of a square ring resonator to suppress its first and the second harmonics.…”

Section: Introductionmentioning

confidence: 99%

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Simulation on Harmonic Suppressions of A Square Ring Resonator by Two Spurlines

Yang¹

2014

IJAREEIE

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A microwave square ring resonator is a narrow band bandpass filter (BPF) that can be widely used in microwave filters and oscillators. But its spurious harmonics generate harmful electromagnetic interferences, and must be removed. In this paper, two spurlines are tuned to suppress the first and the second harmonics of a square ring resonator. Simulations show both harmonics can be highly suppressed.

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Section: Related Workmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Simulation on Harmonic Suppressions of A Square Ring Resonator by Two Spurlines

Yang¹

2014

IJAREEIE

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“…One big issue of microwave BPFs is their harmonics [2]- [4], which can deteriorate their stopband performance and generate electromagnetic interference. The microstrip ring resonator is a very narrow band BPF [5], and it is widely used in microwave systems. In this paper, two embedded stubs are used to suppress the first harmonics of a square ring resonator.…”

Section: Introductionmentioning

confidence: 99%

First harmonic suppression of a square ring resonator by two embedded stubs

Yang

Crutcher

Ellis

et al. 2014

Ieee Southeastcon 2014

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A microwave square ring resonator is a very narrow band bandpass filter (BPF) being widely used in telecommunication systems. Its spurious harmonics deteriorate its stopband performances. Two embedded open stubs are added to the feeding lines of a square ring resonator to suppress its first harmonics. Design details are proposed and simulations show that the first harmonics is suppressed by more than 30 dB.

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“…The composition of materials, moisture or water content of the material under test (MUT) carry useful information and electrical properties of these materials depend on their properties. Thus, the quality control in material science, in food industry, bio-sensing can be conducted based on sensing electrical properties of materials [ 1 – 4 ]. Conventionally, coaxial cavity, waveguide, dielectric resonator sensors have been used for characterizing and detecting material properties.…”

Section: Introductionmentioning

confidence: 99%

“…In microwave system, the harmonic radiation causes the electromagnetic interference (EMI) which is considered as an important problem in effecting the performance of the radio frequency (RF) front-end modules [ 1 , 5 ]. Thus, minimizing harmonic distortion from nonlinear active components is a great challenge in modern microwave technologies.…”

Section: Introductionmentioning

confidence: 99%

Microwave bio-sensor based on symmetrical split ring resonator with spurline filters for therapeutic goods detection

et al. 2017

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A novel symmetrical split ring resonator (SSRR) based microwave sensor with spurline filters for detecting and characterizing the properties of solid materials has been developed. Due to the weak perturbation in the interaction of material under test (MUT) and planar microwave sensor, spurline filters were embedded to the SSRR microwave sensor which effectively enhanced Q-factor with suppressing the undesired harmonic frequency. The spurline filter structures force the presented sensor to resonate at a fundamental frequency of 2.2 GHz with the capabilities of suppressing rejected harmonic frequency and miniaturization in circuit size. A wide bandwidth rejection is achieved by using double spurlines filters with high Q-factor achievement (up to 652.94) compared to single spurline filter. The new SSRR sensor with spurline filters displayed desired properties such as high sensitivity, accuracy, and performance with a 1.3% typical percentage error in the measurement results. Furthermore, the sensor has been successfully applied for detecting and characterizing solid materials (such as Roger 5880, Roger 4350, and FR4) and evidently demonstrated that it can suppress the harmonic frequency effectively. This novel design with harmonic suppression is useful for various applications such as food industry (meat, fruit, vegetables), biological medicine (derived from proteins and other substances produced by the body), and Therapeutic goods (antiseptics, vitamins, anti-psychotics, and other medicines).

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Harmonic suppression of microstrip ring resonator using double spurlines

Cited by 7 publications

References 16 publications

Simulation on Harmonic Suppressions of A Square Ring Resonator by Two Spurlines

Simulation on Harmonic Suppressions of A Square Ring Resonator by Two Spurlines

First harmonic suppression of a square ring resonator by two embedded stubs

Microwave bio-sensor based on symmetrical split ring resonator with spurline filters for therapeutic goods detection

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