Dual-Mode Compact Microstrip Antenna Based on Fundamental Backward Wave

Lai, Anthony; Leong, K.M.K.H.; Itoh, T.

doi:10.1109/apmc.2005.1606881

Cited by 28 publications

(27 citation statements)

References 7 publications

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“…Based on the L-C loaded metamaterial transmission line theory, a dual-band dual-mode patch antenna is proposed. The monopolar radiation in the lower band and patch-like radiation in the upper band can be produced by this antenna, which is very useful for communication systems that require radiation pattern selectivity [4].In this Letter, the resonant-type metamaterial transmission lines are proposed for a dual-band dual-mode patch antenna. To improve radiation efficiency, complementary single split ring resonators (CSSRRs) are used to design the metamaterial transmission lines.…”

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confidence: 99%

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Dual-band dual-mode patch antenna based on resonant-type metamaterial transmission line

Niu¹

2010

Electron. Lett.

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A dual-band dual-mode patch antenna based on the resonant-type metamaterial transmission line is proposed. The resonant-type metamaterial transmission line can provide zeroth-mode resonance at the lower frequency and positive-mode resonance at the upper frequency. For improvement of radiation efficiency, a complementary single split ring resonator is introduced to realise the resonant-type metamaterial transmission line. The equivalent circuit model is applied to analyse and design the proposed antenna. This antenna exhibits monopole-like radiation pattern in the lower band and patch-like radiation pattern in the upper band. Simulation and experimental results are used to verify the theoretical prediction.Introduction: Over recent years, metamaterial transmission lines have exhibited great value in the implementation of novel microwave components and antennas because of their unusual properties. Two main approaches have been proposed to realise metamaterial transmission lines: 1. the L-C loaded approach, in which non-resonant lumped (chip or printed) series capacitances and shunt inductances are used as loading elements in planar transmission lines [1, 2]; 2. the resonanttype approach, in which metamaterial transmission properties are implemented by combining split ring resonators (SRRs) with shunt inductance in coplanar waveguide technology or combining the complementary split ring resonators (CSRRs) with series capacitance in microstrip technology [3]. Based on the L-C loaded metamaterial transmission line theory, a dual-band dual-mode patch antenna is proposed. The monopolar radiation in the lower band and patch-like radiation in the upper band can be produced by this antenna, which is very useful for communication systems that require radiation pattern selectivity [4].In this Letter, the resonant-type metamaterial transmission lines are proposed for a dual-band dual-mode patch antenna. To improve radiation efficiency, complementary single split ring resonators (CSSRRs) are used to design the metamaterial transmission lines. Different from the dual-band dual-mode patch antenna based on the L-C loaded metamaterial transmission line, this antenna exhibits monopole-like radiation pattern in the lower band. Because no grounded via are needed, this antenna is easier to be fabricated.

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confidence: 99%

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confidence: 99%

Dual-band dual-mode patch antenna based on resonant-type metamaterial transmission line

Niu¹

2010

Electron. Lett.

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“…Therefore, the S-DMB band can be easily controlled by changing S L . The resonant frequency of the GPS band can be controlled by adjusting the outer radius according to (1). S11 was also simulated as the gap between annular ring patch and 50-X feed line was increased from 0.2 to 1.1 mm (see Fig.…”

Section: Parameter Studies and Resultsmentioning

confidence: 99%

“…Therefore, radiation patterns of the antenna have to be broadside in the GPS band and conical in the S-DMB band to receive the signals. A dual-mode antenna based on the composite right left hand transmission line (CRLH-TL) has been proposed to produce a monopolar radiation pattern in the 0th mode and a patch-like pattern in the À1st mode [1]. However, the À1st mode has low efficiency and antenna design is not easy.…”

Section: Introductionmentioning

confidence: 99%

Design of a dual‐mode annular ring antenna with a coupling feed

Kim

Woo

Park

2009

Micro & Optical Tech Letters

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A dual-mode annular ring antenna for both global positioning system (GPS) and satellite digital multimedia broadcasting (S-DMB) is designed. The proposed antenna consists of a coupling feed line and four slots on an annular ring patch. A gap between the feed line and the annular ring patch is used for an input impedance matching; the slots are used for adjusting the resonant frequency of the TM 21 mode at the DMB frequency. The antenna was fabricated and measured. The antenna resonates at the GPS and DMB frequencies with suitable bandwidths. It has a broadside radiation pattern in the GPS band and a conical beam radiation pattern in the DMB band.

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“…For dual-mode operation, the field distribution has to be different for each operational frequency. In [12], a dualmode antenna was realized by using the n=0 and n=-1 resonance modes of the CRLH metamaterial TL. The dual-mode antenna of [12] is shown in Fig.…”

Section: Dual-mode Antennamentioning

confidence: 99%

Metamaterial antennas for dual-band and dual-mode applications

Lai

Leong

Itoh

2006

2006 First European Conference on Antennas and Propagation

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Composite right/left-handed metamaterial antennas for dual-band and dual-mode applications are presented. In particular, the fundamental backward wave of an anisotropic composite right/left-handed metamaterial is used to realize a dual-band antenna. By using the infinite wavelength and backward wave of the composite right/left-handed metamaterial, a dual-mode antenna for radiation selectivity is realized.

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Dual-Mode Compact Microstrip Antenna Based on Fundamental Backward Wave

Cited by 28 publications

References 7 publications

Dual-band dual-mode patch antenna based on resonant-type metamaterial transmission line

Dual-band dual-mode patch antenna based on resonant-type metamaterial transmission line

Design of a dual‐mode annular ring antenna with a coupling feed

Metamaterial antennas for dual-band and dual-mode applications

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