A via-free microstrip left-handed transmission line

Sanada, Atsushi; Murakami, Kenji; Aso, Shuji; Kubo, Hiroshi; Awai, Ikuo

doi:10.1109/mwsym.2004.1335877

Cited by 53 publications

(35 citation statements)

References 6 publications

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“…The frequency of the electromagnetic wave travelling in the LHTL is an important measure indicator. As mentioned in the previous work [9,28], the left-handedness appears only in the microwave frequency band. That the left-handedness in the microwave frequency band is homogeneous or not is not clear in the quantized unit cell circuit of the LHTL.…”

Section: Bsupporting

confidence: 53%

“…The left-handedness in the LHTL can be achieved by a discrete array of series capacitors and parallel inductors [2][3][4] (Fig.1), which remains the metamaterial via the array of series dual interchanged inductors and capacitors other than the usual discrete representation of the right-handed transmission line (RHTL). LHTL is perhaps one of the most representative and potential candidates due to its non-resonant type with low loss, broad operating frequency band, as well as planar configuration [5,6], which is often related with easy fabrication for NRI applications in a suite of novel guided-wave [7], radiated-wave [8], and refracted-wave devices and structures [9,10].…”

mentioning

confidence: 99%

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Negative refraction index of the quantum lossy left-handed transmission lines affected by the displaced squeezed Fock state and dissipation

Zhao

Wei

2017

Superlattices and Microstructures

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Quantum lossy left-handed transmission lines (LHTLs) are central to the miniaturized application in microwave band. This work discusses the NRI of the quantized lossy LHTLs in the presence of the resistance and the conductance in a displaced squeezed Fock state (DSFS). And the results show some novel specific quantum characteristics of NRI caused by the DSFS and dissipation, which may be significant for its miniaturized application in a suit of novel microwave devices.

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Section: Bsupporting

confidence: 53%

mentioning

confidence: 99%

Negative refraction index of the quantum lossy left-handed transmission lines affected by the displaced squeezed Fock state and dissipation

Zhao

Wei

2017

Superlattices and Microstructures

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“…The CRLH TL dispersion relation can be explained theoretically by applying the Bloch-Floquet theorem on the ABCD matrix of the proposed equivalent circuit [15] as:…”

Section: Filter Design Theorymentioning

confidence: 99%

Triple-Band Composite Right/Left Handed Bandpass Filter Using a New Circular Inter-Digital Capacitor for Wireless Applications

Kumar¹,

Choudhary²,

Chaudhary³

2017

PIER C

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Abstract-In this paper, a compact triple-band bandpass filter based on composite right/left handed (CRLH) approach has been proposed. The zeroth order resonance (ZOR) frequency of the designed filter can be controlled effectively by varying the series parameters. A new circular interdigital capacitor is integrated to provide series capacitance. The number of passbands depends on number of rings of circular interdigital capacitor (C-IDC). In order to validate metamaterial behavior, a dispersion diagram has been plotted for the designed filter. The proposed filter offers measured 3 dB fractional bandwidth of 71% at 1.7 GHz, 24% at 2.9 GHz and 12% at 4.1 GHz as center frequencies. The designed filter will be suitable for different wireless applications such as global navigation satellite systems (1.559-1.610 GHz), GSM1800, indoor femtocells (2.5-2.7 GHz), air traffic surveillance (2.7-2.9 GHz) and fixed satellite services (3.8-4.2 GHz). The size of the proposed filter is 0.13λ 0 × 0.11λ 0 , where λ 0 is the free space wavelength at ZOR frequency of 1.7 GHz.

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“…The bow (flaring) corresponding to the inductor loaded strip, acts as a metal patch and provides a capacitance C g to the ground. When C g is large, it provides a virtual ground voltage [19,20] and thus realizes the shunt inductance (L L ). This condition triggers the zeroth order mode of the structure at lower frequencies.…”

Section: Antenna Geometry and Designmentioning

confidence: 99%

Modified Bowtie Antenna for Zeroth Order Resonance

Roshna¹,

Deepak²,

Sajitha³

et al. 2014

PIER C

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Abstract-A novel extremely compact Zeroth Order Resonator (ZOR) antenna with a chip inductor, for Digital Video Broadcasting-Handheld (DVB-H) application, is presented. The proposed antenna has a bowtie structure with an overall dimension of 0.0186λ 0 × 0.020λ 0 × 0.003λ 0 mm 3 at 503 MHz. The zeroth resonance property makes the resonant frequency to be independent of the antenna dimension. The 3 : 1 VSWR bandwidth of the antenna is 39 MHz and offers an omnidirectional radiation pattern. A 99.1% reduction in the overall area of the structure is achieved compared to a conventional circular patch antenna operating at the same frequency.

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A via-free microstrip left-handed transmission line

Cited by 53 publications

References 6 publications

Negative refraction index of the quantum lossy left-handed transmission lines affected by the displaced squeezed Fock state and dissipation

Negative refraction index of the quantum lossy left-handed transmission lines affected by the displaced squeezed Fock state and dissipation

Triple-Band Composite Right/Left Handed Bandpass Filter Using a New Circular Inter-Digital Capacitor for Wireless Applications

Modified Bowtie Antenna for Zeroth Order Resonance

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