A Study on a Miniaturized Planar Spiral Antenna for Partial Discharge Detection in GIS

Wang, Yongqiang; Li, Jianfang; Li, Changyuan; Ouyang, Baolong; Zheng, Zhihong

doi:10.1051/matecconf/20152202015

Cited by 6 publications

(4 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Various cavity-backed spiral antennas were studied by using inductors [8], resistors [9], a ring-shaped absorber [10], or bow-tie loading [11]. In addition, a spiral antenna was proposed to reduce its size by employing sine-wave meandered arms [12] and an equiangular spiral antenna with a horizontal balun was proposed for easy package [13]. A single-arm spiral antenna directly fed by a coaxial cable was also proposed in [14].…”

Section: Introductionmentioning

confidence: 99%

Design of a Circularly-Polarized UHF Antenna for Partial Discharge Detection

Park

Jung

2020

IEEE Access

View full text Add to dashboard Cite

In this work, a circularly-polarized ultra-high frequency (UHF) partial discharge (PD) antenna is proposed to detect the PD in 0.6 GHz-1.7 GHz. The proposed PD antenna consists of an Archimedean spiral antenna, a balun, and a cavity. The Archimedean spiral antenna is embedded by FR-4 as substrate and superstrate for miniaturization. The microstrip-to-paired strips balun is designed to yield good performance in the return loss, insertion loss, and amplitude and phase imbalances which are of great necessity for low axial ratio. The cavity is employed to obtain unidirectional radiation patterns and prevent external signal interference. However, it is found that the originally-designed cavity-backed antenna does not work properly near 1.35 GHz due to resonance phenomena in the cavity. In this work, the cavity is modified to tackle this problem. The proposed UHF PD antenna is fabricated and measured and the results show that it provides good impedance matching, realized gain, radiation pattern, and circular polarization. INDEX TERMS Broadband antennas, partial discharges, UHF antennas.

show abstract

Section: Introductionmentioning

confidence: 99%

Design of a Circularly-Polarized UHF Antenna for Partial Discharge Detection

Park

Jung

2020

IEEE Access

View full text Add to dashboard Cite

show abstract

“…The output end of microstrip balun is a balanced end with a characteristic impedance of 188.5 Ω, and the balanced end is connected to an antenna. Balun changes from the unbalanced end to the balanced end through an exponential gradient line in the 0.8GHz to 2GHz frequency band, and completes impedance transformation 17 . In this design, a polytetrafluoroethylene dielectric plate with a dielectric constant of 2.2 and a thickness of 2mm is selected as the dielectric substrate for the microstrip line.…”

Section: Balun Designmentioning

confidence: 99%

Design of ultra-high-frequency sensor for partial discharge detection in cable accessories

Li,

Yang,

Chen

et al. 2024

Fifteenth International Conference on Signal Processing Systems (ICSPS 2023)

View full text Add to dashboard Cite

Partial discharge detection is an effective method for evaluating the insulation condition of cable accessories. Ultra-high frequency method for detecting partial discharge has strong anti-interference ability. Therefore, a broadband, circularly polarized Archimedean planar spiral antenna is used as the partial discharge detection sensor. After determining the antenna parameters through theoretical calculations, simulate and design the antenna. Analyze the influence of different inner diameter values on antenna performance. Exponential gradient microstrip balun is added to achieve impedance matching between the antenna and the coaxial line, and a reflection cavity is added to achieve unidirectional radiation and gain improvement of the antenna. Based on parameter analysis, optimize the design of Archimedean planar spiral antenna and complete the physical production. The test results indicate that the designed Archimedean planar spiral antenna has a gain greater than 6dB and a VSWR less than 2. The performance of the antenna meets the requirements.

show abstract

“…In this way, the current will form the main radiation in the normal direction of the plane where the helical wire is located. In other words, the main radiating area of the planar Archimedean spiral antenna is concentrated on a helical ring zone with a circumference equal to the wavelength λ , also known as the effective radiation band 13 . When the frequency changes, the main radiation area changes, but the pattern is basically unchanged.…”

Section: The Basic Form Of Archimedes Spiral Antennamentioning

confidence: 99%

“…In this paper, the multi‐frequency point compound antenna is compared with the external miniaturized spiral antenna used in literature, 13 and they are all placed on the basin insulator. When the defect model is pressurized to 30.2 kV, the waveform diagram of the PD signal received by two external sensors at the same time is shown in Figure 13.…”

Section: Characteristics Of Multi Frequency Point Broadband Compound mentioning

confidence: 99%

A multi frequency point broadband compound antenna for partial discharge detection in gas insulated switchgear

Wang

Feng

Guan

et al. 2020

Int J RF Microw Comput Aided Eng

Self Cite

View full text Add to dashboard Cite

In order to meet the requirements of the miniaturized and wide-band antennas for ultra-high frequency (UHF) detection method, a multi frequency point broadband compound antenna for detecting partial discharges (PD) of gas insulated substations (GIS) was designed. Firstly, through the analysis of the principle of miniaturization and broadbandization of the compound antenna, the meander technology was used to realize the miniaturization of the antenna, the multiple radiation unit technology was used to broaden the detection frequency band of the antenna, and the HFSS simulation software was used to simulate the design of the compound antenna. Then we made the antenna object according to the optimized simulation results, and the voltage standing wave ratio (VSWR) of this antenna was tested by vector network analyzer. Finally, the GIS PD test system was built in the laboratory to conduct the actual measurement research on the antenna. The test results show that: The compound antenna has the characteristics of miniaturization, high gain and multi-band. In the frequency range of 1.0 GHz to 3.0 GHz, its VSWR is less than 2, has a wide frequency range, can record most of the PD information. With the increase of frequency, the compound antenna gain is gradually increasing, and the maximum gain of the antenna can reach 6.5 dB, which can effectively receive weak UHF signals. The proposed antenna is quite promising for PD on-line detection applications.

show abstract

A Study on a Miniaturized Planar Spiral Antenna for Partial Discharge Detection in GIS

Cited by 6 publications

References 4 publications

Design of a Circularly-Polarized UHF Antenna for Partial Discharge Detection

Design of a Circularly-Polarized UHF Antenna for Partial Discharge Detection

Design of ultra-high-frequency sensor for partial discharge detection in cable accessories

A multi frequency point broadband compound antenna for partial discharge detection in gas insulated switchgear

Contact Info

Product

Resources

About