Applications of Split-Ring Resonances on Multi-Band Frequency Selective Surfaces

Li, D.; Xie, Yong; Wang, P.; Yang, Rui

doi:10.1163/156939307782000271

Cited by 21 publications

(16 citation statements)

References 26 publications

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“…It is well known that the resonant frequencies of circular/ring resonators are determined by their dimensions, i.e., the resonant frequencies are generally directly proportional to their diameters. The relationship between resonant frequencies and diameters of these resonators has been studied with the equivalent circuit model method [19,20] (also called "transmission-line model method" [13,[21][22][23][24]). …”

Section: Theory and Methodsmentioning

confidence: 99%

CPW-Fed Multi-Band Omni-Directional Planar Microstrip Antenna Using Composite Metamaterial Resonators for Wireless Communications

Si¹,

Lv²

2008

PIER

138

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Abstract-A novel approach for the design of a compact multiband planar microstrip antenna is presented. This type of antenna is composed of composite metamaterial resonators (including conditional microstrip resonators and metamaterial resonators), and fed by signal feed. A sample antenna with composite closed-ring resonator and split-ring resonator (SRR) fed by 50 Ω coplanar waveguide (CPW) developed on FR4 epoxy substrate for multi-band wireless communication applications is presented. Appropriate design of the composite structure resulted in three discontinuous resonant bands. The fundamental magnetic resonant and electric resonant frequency of SRR and the first electric resonant frequency of the closed-ring resonator were combined to form low, middle, and high resonant band. The properties of this antenna are investigated by theoretical analysis and finite element method (FEM) simulations. The numerical results show that the proposed antenna has good impedance bandwidth and radiation characteristics in the three operating bands which cover the required band widths of the 2.4/5.2/5.8 GHz wireless local-area networks (WLAN) and 3.5/5.5 GHz worldwide interoperability for microwave access (WiMax) with return loss of better than 10 dB. The antenna also has stably omni-directional H-plane radiation patterns within the three operating bands.

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Section: Theory and Methodsmentioning

confidence: 99%

CPW-Fed Multi-Band Omni-Directional Planar Microstrip Antenna Using Composite Metamaterial Resonators for Wireless Communications

Si¹,

Lv²

2008

PIER

138

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“…The strip dipoles are assumed to be very thin, each dipole is divided into 4 triangular patches with 3 non-boundary edges as shown in Figure 3. The spatial filter is subjected to a plane wave, whose electric field is expressed as, (16) where…”

Section: Current Distribution On the Elements Of A Free Standing Planmentioning

confidence: 99%

“…Multi-band frequency selective surfaces have found many applications in microwave and optical communication systems. Many techniques have been proposed for the analysis and design of the employed FSSs [16][17][18][19][20]. In order to model the finite array FSS accurately, a numerical technique should be used that simulate the whole array.…”

Section: Introductionmentioning

confidence: 99%

Spatial Filters for Linearly Polarized Antennas Using Free Standing Frequency Selective Surface

Farahat¹,

Hussein²,

El-Minyawi³

2008

PIER M

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Abstract-Free standing planar frequency selective surfaces (FSSs) are studied when utilized as spatial filters for linearly polarized antennas. The antenna spatial filter investigated in the present work is constructed up as a finite planar array of conducting strip dipoles. The electric field integral equation (EFIE) technique with the Rao-WiltonGlison (RWG) basis functions are used to get the current distribution on the conducting strips. The current distribution and backscattered electric field due to an incident plane wave are calculated and compared to some published work. The effect of polarization on the scattered field, and the frequency response of the spatial filter are studied. To test the operation of the proposed planar FSS, a bowtie antenna is used with the FSS employed as a spatial filter. The field transmitted by the antenna and passed over a wide frequency band through the FSS is calculated. It is shown that such a free standing planar FSS can operate as a band stop filter for linearly polarized antennas. It is also shown that even when the size of the array is reduced, the FSS maintains its frequency response with a very slight change in the center frequency of the stop band. The effect of element size, spacing between the elements, and interleaving the columns of the FSS on the frequency response of the FSS are studied. The effect of the spatial filter on the antenna input impedance is studied over a wide frequency band. The radiation pattern of the bowtie is calculated in the presence 168 Farahat, Hussein, and El-Minyawi of the spatial filter. It is shown that the existence of the later causes considerable reduction in the radiation pattern within the stop band of the filter.

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“…Smith et al then successfully realized the first negative index material (NIM) sample at microwave frequencies [4]. Researches on the properties and applications of such metamaterials have become much more popular inspired by this work [5][6][7][8][9][10][11][12][13][14]. Some alternative structures also have been designed to realize NIM [15][16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Negative Index Material Composed of Meander Line and SRRS

Tang¹,

Zhao²,

Zhou³

et al. 2008

PIER B

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Abstract-A compact meander-line resonator is proposed in this paper, which could provide negative permittivity with a small unit-towavelength ratio. The meander-line structure is simple to be designed and is convenient to be controlled. Negative index materials (NIM) are realized using units composed of meander lines and split-ring resonators (SRRs), which have simultaneously negative permittivity and permeability in a specified pass band with relatively low loss. Simulation results show the identified properties of the meander-line resonator and NIM.

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Applications of Split-Ring Resonances on Multi-Band Frequency Selective Surfaces

Cited by 21 publications

References 26 publications

CPW-Fed Multi-Band Omni-Directional Planar Microstrip Antenna Using Composite Metamaterial Resonators for Wireless Communications

CPW-Fed Multi-Band Omni-Directional Planar Microstrip Antenna Using Composite Metamaterial Resonators for Wireless Communications

Spatial Filters for Linearly Polarized Antennas Using Free Standing Frequency Selective Surface

Negative Index Material Composed of Meander Line and SRRS

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