Multifrequency Self-Diplexed Single Patch Antennas Loaded With Split Ring Resonators

Montero-de-Paz, Javier; Ugarte-Munoz, E.; Herráiz-Martínez, Francisco Javier; González-Posadas, V.; García-Muñoz, Luis Enrique; Segovia-Vargas, and Daniel

doi:10.2528/pier10121703

Cited by 56 publications

(39 citation statements)

References 22 publications

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“…Assuming the superconducting effects, we need simply to modify (1) by replacingḠ(k ρ ) by (Ḡ(k ρ )−Z S ), whereZ S is the surface impedance of superconducting annular ring patch. When the thickness of the superconducting patch is less than three times the zero-temperature penetration depth (λ 0 ),Z S can be expressed as follows…”

Section: Dielectric Layersmentioning

confidence: 99%

“…Microstrip antennas have been developed over the years and have been widely used in personal mobile communication, wireless local area computer networks, and satellite communication [1,2]. The rapid advances in the wireless communication industry demand novel antenna designs that could be used in high frequencies and that will allow size reduction.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Theoretical Study of Superconducting Annular Ring Microstrip Antenna With Several Dielectric Layers

Barkat¹

2012

PIER

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Abstract-An analytical model is presented to investigate the performances of an annular-ring patch etched on a two layered dielectric substrate and is covered by a dielectric superstrate, by using a full-wave spectral domain technique in conjunction with the complex resistive boundary condition. Galerkin's method and Parseval's theorem are used to obtain the resonant frequency and bandwidth. To validate the theoretical results, a study has been performed for an annular-ring patch on a single layer, with air gap, and cover layer. The computed data are found to be in good agreement with results obtained using other methods. Variations of the resonant frequency and bandwidth with the high temperature superconducting (HTS) thin film are also presented. The proposed model is simple, accurate and thus should help a designer for practical applications.

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Section: Dielectric Layersmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Theoretical Study of Superconducting Annular Ring Microstrip Antenna With Several Dielectric Layers

Barkat¹

2012

PIER

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“…The equivalent-circuit models for SRR structure, as well as its exciting through the planar transmission line, are studied in detail in the previous work [3]. Due to its peculiar electronmagnetic responses, SRR structure opens possibilities to form various structures with novel applications [4][5][6][7][8][9]. However, to high-level miniaturized applications the conventional SRR structure exhibits larger size and higher resonance frequencies, especially at low-frequencies.…”

Section: Introductionmentioning

confidence: 99%

Novel Nested Split-Ring-Resonator (Srr) for Compact Filter Application

Liu¹,

Zhang²

2013

PIER

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Abstract-In this paper, a novel miniaturized nested split-ring resonator (SRR) structure is proposed. The nested SRR structure incorporates multiple split-ring resonators in a compact nested structure, and has more split gaps than the conventional SRR structure. Compared with conventional SRR, this nested SRR has better performance on miniaturization and high-Q value. To verify good characteristics of the proposed resonator structure, a novel resonator-embedded band-pass filter (BPF), which is constructed by four nested resonators, is designed. This novel BPF is very compact and has good in-and out-band performances. The proposed nested SRR unit cell has size of 0.04λ g × 0.04λ g (λ g is the signal wavelength at the 2.4 GHz central frequency of the pass-band). Its stop-bands are extended 0.5 ∼ 2 GHz at lower band and 2.7 ∼ 5.4 GHz at upper band with a rejection level of higher than 20 dB, and its 1-dB pass-band is 2.2 ∼ 2.55 GHz with 1.8 dB optimized insertion loss. The measured and simulated results are well complied with each other.

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“…Among them, metamaterials, including composite right/lefthanded transmission line (CRLH TL) structure, negative refractive index-transmission line (NRI-TL) structure, or other periodic structures have been investigated and introduced to design novel microwave components and antennas for their unusual electromagnetic properties recently [1][2][3][4][5][6][7][8][9][10]. In [11], a single-feed dual-band dualmode microstrip antenna is proposed based on metamaterial structure.…”

Section: Introductionmentioning

confidence: 99%

Novel Phase-Shifting Characteristic of CRLH Tl and Its Application in the Design of Dual-Band Dual-Mode Dual-Polarization Antenna

Cao¹,

Zhang²,

Liu³

et al. 2012

PIER

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Abstract-The phase-shifting characteristic of a novel composite right/left handed transmission line (CRLH TL) for two frequency points is analyzed in this paper. Samples of (90 • , 0 • ) and (180 • , 0 • ) phase-shifting TLs for two frequency points (f 1 , f 2 ) are deigned and the total length of the CRLH TLs has decreased by more than 77% compared to the conventional microstrip lines. Then a four way power divider made by three Wilkinson power dividers and interconnected with the (90 • , 0 • ) and (180 • , 0 • ) phase-shifting TLs is designed to feed an antenna with two different operating modes at two different frequency bands. Four radiating patches arranging symmetrically in a loop are printed in an upper substrate and connected with the four outputs of the feed network by four copper pins. When the four rectangular patches are excited by four sources with equal amplitude and phase at f 1 , metamaterial antenna with conical beam and linear polarization (LP) is achieved; while four sources with equal amplitude but 90 • phase difference for each adjacent output at f 2 leads to wideband antenna with broadside beam and circular polarization (CP). One antenna prototype with dual-band dual-mode dual-polarization property is fabricated and good agreements between simulation and measurement results are obtained. This single-feed patch antenna is valuable in wireless communications for its radiation pattern selectivity and polarization diversity.

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Multifrequency Self-Diplexed Single Patch Antennas Loaded With Split Ring Resonators

Cited by 56 publications

References 22 publications

Theoretical Study of Superconducting Annular Ring Microstrip Antenna With Several Dielectric Layers

Theoretical Study of Superconducting Annular Ring Microstrip Antenna With Several Dielectric Layers

Novel Nested Split-Ring-Resonator (Srr) for Compact Filter Application

Novel Phase-Shifting Characteristic of CRLH Tl and Its Application in the Design of Dual-Band Dual-Mode Dual-Polarization Antenna

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