Ultrathin and Miniaturized Frequency Selective Surface With Closely Located Dual Resonance

Hong, Tao; Wang, Mengdan; Peng, Ke; Gong, Shuxi

doi:10.1109/lawp.2019.2915396

Cited by 12 publications

(5 citation statements)

References 11 publications

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“…Whereas the work demonstrated in the literature 1–6,8–14 provides partial angular stability and lower operational bandwidth for the lower resonant frequency. The proposed FSS is simple and less expensive because of employing low‐cost FR4 dielectric material as a substrate. Whereas, the FSS reported in the literature 2–6,9–16 uses expensive dielectric material. The designed FSS is rotational symmetry and thus seems to be polarization insensitivity and angularly stable, while the FSS demonstrated in References [1–4], [8–10], and [10,11] are asymmetric, hence their resonance characteristics changes with the incidence angle of wave and on the orientation of FSS. The reported FSS can be easily redesigned for changing over its resonant frequency between 1 and 5 GHz by simply varying the length of the convoluted structure in each of three layers. For resonating more than 5 GHz, the FSS must be resized.…”

Section: Resultsmentioning

confidence: 99%

“…However, the important issue is associated with the fabrication of parasitic components, as any slight deviation from the nominal values may produce nonidentical unit cells, which might affect the FSS response. Miniaturizations using multiple capacitive layers have been experimented with References 12–15. The FSSs in References 12–15 are limited by multiple layers (up to five), which affects the reproducibility of the FSS unit cells.…”

Section: Introductionmentioning

confidence: 99%

“…Miniaturizations using multiple capacitive layers have been experimented with References 12–15. The FSSs in References 12–15 are limited by multiple layers (up to five), which affects the reproducibility of the FSS unit cells. The complexity and the cost of production also increase with the increase in the number of metallization layers.…”

Section: Introductionmentioning

confidence: 99%

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Inductively coupled triple layers of ultra‐miniaturized frequency selective surface for L‐band applications

Ashvanth

Partibane²

2022

Int J RF Mic Comp-Aid Eng

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A novel ultra-miniaturized frequency selective surface (FSS) based on a triple layer of the convoluted metallic strip is presented in this article. The interconnection of metallic convoluted strips in each layer to one another by PTH holes increases the electrical length of FSS and thus reduces the resonant frequency to 1.23 GHz and hence the unit cell is miniaturized. The proposed FSS realizes a wide stop band centered at 1.23 GHz with a -10 dB impedance bandwidth of 400 MHz. The size of the unit cell is 0.024 λ o Â 0.024 λ o , which is atleast 29% smaller than the similar literature works. To demonstrate the validity of design, the FSS of size 30 cm Â 30 cm accommodating 2500 unit cells with a periodicity of 6 mm is fabricated, tested, and verified with the measurement result. The FSS provides a stable response up to the incident angle of 60 for both transverse electric and transverse magnetic operating modes. Furthermore, the proposed FSS is polarization insensitive because of its rotational symmetry. The proposed FSS finds suitable for the applications of GPS, aircraft surveillance, astronomy and mobile services, and so on.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Inductively coupled triple layers of ultra‐miniaturized frequency selective surface for L‐band applications

Ashvanth

Partibane²

2022

Int J RF Mic Comp-Aid Eng

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“…One method of reducing unit cell size, thereby miniaturising the FSS and still maintaining frequency response stability, is by using ultra-thin dielectric substrates [11] - [13] to separate multiple layer FSS. The high capacitance created by the ultrathin substrate causes a lower resonant frequency due to (1).…”

Section: Introductionmentioning

confidence: 99%

Miniature Convoluted FSS for Gain Enhancement of a Multiband Antenna

et al. 2021

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Convoluted elements on a frequency selective surface (FSS) allow for low frequency elements to be contained in physically smaller unit cells. Smaller unit cells give the FSS greater angular stability, especially where a curved FSS is required, and so unwanted grating effects are avoided. A convoluted element FSS with a frequency rejection band centred at 2 GHz and unit cell area of 15 mm by 15 mm (0.10 λ x 0.10 λ) has been developed. To test its usefulness, the full structure FSS is used as a parabolic reflector in a dual band FSS reflector antenna operating at 1 GHz and 2 GHz. Simulated and measured results are close at both bands. The reflector antenna has high gain at 2 GHz of 12.7 dBi (simulated) and 11.7 dBi (measured). To observe the angular stability of the FSS and therefore its effectiveness as a reflector, it was compared with a copper test reflector at both bands. Simulation of the reflector antenna with test reflector produced a 2 GHz gain of 13.3 dBi which is very close to that with the FSS reflector. The simulated 2 GHz gain plot of the reflector antenna with FSS reflector is very similar to that with the test reflector indicating that the FSS has good angular stability. The gain at 1 GHz is also high with 9.3 dBi (simulated) and 8.7 dBi (measured). Simulation of the reflector antenna with no FSS and only a rear test reflector produced a 1 GHz gain of 10 dBi which is very close to that with the FSS reflector in place indicating that the FSS causes no significant attenuation at that frequency. The convoluted element FSS would be useful as a curved reflector in the creation of high gain, multiband, conformal antennas.

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“…Moreover, in [47]- [50] more complex wideband structures were designed. Multi-band designs [51], [52] and dual-band [53]- [55] designs have been also presented. Later in this thesis the design of dual-band Fabry-Pérot antennas and arrays will be presented.…”

Section: Introductionmentioning

confidence: 99%

Single-Layer Dual-Band Leaky Wave Antennas Design Methodology with Directivity Control

Memeletzoglou

Rajo‐Iglesias

Blanco

2018

2018 IEEE International Symposium on Antennas and Propagation &Amp; USNC/URSI National Radio Science Meeting

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While this journey comes to an end, I couldn't be more grateful for all the people that supported me during these years. First of all, I would like to thank my advisor Eva, for always being there to help me when I needed her, for the knowledge she shared with me, and for always trying to make the best out of everything.I would also like to thank Oskar Dalhberg and Qiao Chen from KTH Royal Institute of technology for the antenna measurements in the anechoic chamber.Of course I would never be able to reach this point, if I didn't have the help of my parents and their support towards any decision I made. Special thanks to my brother Χάρης who made me laugh even in difficult times. I am grateful for my close friends who were always there for me. Last but not least, my greatest thanks to Ignacio for encouraging me and giving me strength. I could never do this without his 24/7 support during all these years.Σας ευχαριστώ όλους και τον καθένα ξεχωριστά, χωρίς εσάς δεν θα είχα φτάσει ως εδώ. Ναυσικά vi vii ContentsAcknowledgements v Related Publications xiiiResumen xixxx de frecuencias mucho más bajas, puede utilizarse también en aplicaciones de sistemas radar. En la segunda parte, se han desarrollado e implementado diseños innovadores de antenas y arrays usando la tecnología gap waveguide en particular su versión groove. En ellos, se han diseñado novedosas redes de alimentación y sistemas de corrección de fase que proporcionan bajas pérdidas y alta eficiencia.

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Ultrathin and Miniaturized Frequency Selective Surface With Closely Located Dual Resonance

Cited by 12 publications

References 11 publications

Inductively coupled triple layers of ultra‐miniaturized frequency selective surface for L‐band applications

Inductively coupled triple layers of ultra‐miniaturized frequency selective surface for L‐band applications

Miniature Convoluted FSS for Gain Enhancement of a Multiband Antenna

Single-Layer Dual-Band Leaky Wave Antennas Design Methodology with Directivity Control

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