A novel substrate integrated waveguide slot antenna with high power-handling capacity

Zhang, Heng; Meng, Ru; Xia, Zhen-Xing; Zhu, Qi

doi:10.1109/aps.2014.6904845

Cited by 5 publications

(3 citation statements)

References 4 publications

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“…λ 0 represents the wavelength at the operating frequency and ε r is the relative permittivity of the dielectric substrate. Apart from the wider bandwidth, the proposed structure offers high power handling capabilities [25,26] and structural strength when used as a reinforced structure. Figures 4(a) and 4(b) showed the uniformly distributed strong surface currents on conventional FSS and proposed FSS at 10 GHz respectively when a plane-wave incident on it normally.…”

Section: Design Of Jerusalem Cross Elementmentioning

confidence: 99%

Design of a hybrid A-sandwich radome using a strongly coupled frequency selective surface element

Varikuntla

Raghavan

2020

Int. J. Microw. Wireless Technol.

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The airborne radomes have to cater superior electromagnetic (EM) performance with bandpass characteristics of stealth application. In this regard, a hybrid A-sandwich radome is proposed in this paper. The proposed radome consists of a novel strongly coupled frequency selective surface (FSS) core sandwiched between two dielectric layers (acts as skin) to form an A-sandwich structure. The dielectric layers are cascaded in such a way that the middle layer has less dielectric parameters than the skin dielectric. The core layer comprises a modified FSS array using strongly coupled FSS layers through a series of metallic vias. This strongly-coupled FSS element will have the advantage of eliminating inter-element interference and improves the EM performance characteristics of the structure. The structure exhibits very good band-pass characteristics (>90%) at a normal impinging angle with sharp roll-off characteristics. To show the efficacy of the proposed structure, the transmission loss has been compared with that of conventional A-sandwich radomes at 0°, 50° incidence angle for both TE and TM polarization. Conformal analysis of the unit cell has been carried out, and sector-wise thickness optimization was performed to analyze the structure for the conformal shaped radome application. Finally, a physical prototype has been fabricated and measured its scattering parameters, radiation characteristics in a fully shielded anechoic chamber. The results are encouraging and prove its suitability for radome application.

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Section: Design Of Jerusalem Cross Elementmentioning

confidence: 99%

Design of a hybrid A-sandwich radome using a strongly coupled frequency selective surface element

Varikuntla

Raghavan

2020

Int. J. Microw. Wireless Technol.

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“…Concerning the power handling capability (PHC) of an antenna, many researchers have considered it as a challenging issue. So, not a few numbers of reported designs have used large metallic surfaces to improve the PHC of their antennas as in [16]- [19]. As a result, theoretically, a PHC of 1.16 GW is achieved in [16], 1 GW in [17], 1.29 GW in [18] and 22.9 MW in [19].…”

Section: Introductionmentioning

confidence: 99%

“…So, not a few numbers of reported designs have used large metallic surfaces to improve the PHC of their antennas as in [16]- [19]. As a result, theoretically, a PHC of 1.16 GW is achieved in [16], 1 GW in [17], 1.29 GW in [18] and 22.9 MW in [19]. All these designs suffer from large size, heavy weight and high cost.…”

Section: Introductionmentioning

confidence: 99%

A High-Power Sandwiched Omnidirectional Circularly Polarized Antenna for GNSS Systems

2023

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This paper presents a small-size, low-profile antenna for anti-attacking systems that work against unmanned GNSS-guided attacking vehicles to protect a vital area. The proposed antenna has the ability to handle, theoretically, a peak power up to 157.7 kW. It has a cylindrical shape with a diameter of 75.4 mm and a height of 12.8 mm on a low-cost FR-4 substrate. This small size allows the integration of the proposed antenna with any portable system that prevents the attacks of GNSS-guided vehicles. The proposed antenna covers the whole GNSS frequency band with a fractional impedance bandwidth of 32.5% (1.16-1.61) GHz and a fractional axial ratio bandwidth of 37.6% (1.1-1.61) GHz utilizing a sandwiched structure. This broadband performance is realized using capacitive feeding. The proposed design maintains circularly polarized radiation over a wide elevation angle of 132º and a 360º azimuth angle which makes the proposed design suitable for GNSS anti-attacking systems.

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Experimental Characterization of Compact Slotted Substrate-Integrated-Waveguide Array Antenna

Munir

Dewantari

Izzuddin

et al. 2020

2020 IEEE International Conference on Communication, Networks and Satellite (Comnetsat)

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A novel substrate integrated waveguide slot antenna with high power-handling capacity

Cited by 5 publications

References 4 publications

Design of a hybrid A-sandwich radome using a strongly coupled frequency selective surface element

Design of a hybrid A-sandwich radome using a strongly coupled frequency selective surface element

A High-Power Sandwiched Omnidirectional Circularly Polarized Antenna for GNSS Systems

Experimental Characterization of Compact Slotted Substrate-Integrated-Waveguide Array Antenna

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