Design and Experimental Verification of Compact Frequency-Selective Surface With Quasi-Elliptic Bandpass Response

Abstract-In this paper, a novel narrowband frequency selective surface (FSS) with a stable performance based on substrate integrated waveguide technology is presented. The unit cell of the FSS consists of a double-sided metalized substrate with a circular hole and a SIW circular cavity. In this way, incident EM waves enter the circular cavity and excite a TM 110 cavity resonance, leading to a narrow passband. The high-Q property of the TM 110 cavity resonance provides a very good wide-angle and polarization-independent stability. Both the simulation and experimental results show that such narrowband FSS owes its advantages to high selectivity, low profile stable performance with various incident angles and different polarizations, which is suitable for impulse detections, narrow-band communications, electronic countermeasures, etc.

Section: Fss With Stable Resonancementioning

confidence: 99%

“…SIW-FSS structures keep the advantages of conventional metallic waveguides, such as high Q-factor, high selectivity, cutoff frequency characteristic, high power capacity etc. Based on this method, many excellent SIW-FSSs were studied in [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Narrowband Frequency Selective Surface Based on Substrate Integrated Waveguide Technology

Zhou¹,

Qu²,

Pei³

et al. 2011

“…Coupledresonator spatial filter (CRSF) FSS was firstly introduced in [20] and further investigated in [21][22][23][24], in which two microstrip patches are coupled through an aperture to form a higher-order bandpass filter. Substrate integrated waveguide (SIW) technology was proposed by Luo et al [25][26][27] to design high performance FSSs, in which the SIW cavity is formed by arranging metallic via array around each periodic slot. Miniaturized FSS whose dimensions are much smaller than operating wavelength are poposed in [5].…”

Section: Introductionmentioning

confidence: 99%

Waveguide Filter Using Frequency Selective Surface With Miniaturized Element

Yang¹,

Zhou²,

Li³

et al. 2013

Abstract-In this paper, a waveguide filter using miniaturizedelement frequency selective surface (FSS) is presented. The proposed FSS is composed of periodic array of metallic patches separated by small gaps and metallic lines. The array of patches constitutes a capacitive surface and the lines a coupled inductive surface, which together act as a resonant structure. At about 5.0 GHz, a narrow bandpass response is designed. Dimensions of the FSS element are much smaller than the operating wavelength, which is less than 1/13λ. For this miniaturized element, grating lobes are restrained and do not appear event to 25 GHz. Moreover, the FSS has stable performances for various incident angles. Design procedure and measurement results of the FSS are presented and discussed.

“…FSSs with very small unit cell dimensions have been proposed in [12][13][14][15]. To achieve high Q-factor from open resonators, substrate integrated waveguide (SIW) technology was introduced by Luo et al [16,17] to design high-performance FSS.…”

Section: Introductionmentioning

confidence: 99%

A FSS With Stable Performance Under Large Incident Angles

Ma¹,

Zhou²,

Yang³

et al. 2013

Abstract-In this paper, we propose a novel frequency selective surface (FSS) with stable performance under large incident angles. The FSS is composed of hexagon metallic lines and hexagon patches. Using such a hexagon arrangement, the periodicity size could be miniaturized and thus the FSS unit cell is compact. The composite FSS has an excellent stability under large incident angles. In the passband 10.58-11.06 GHz, the insertion loss is still less than −1 dB for both TE and TM polarizations, even under incident angle up to 85 degree. Both the design procedure and experimental results of the novel FSS are presented and discussed.