Tunable Single-Negative Metamaterials Based on Microstrip Transmission Line With Varactor Diodes Loading

Feng, Tuanhui; Li, Yunhui; Jiang, Haitao; Li, Wenxin; Yang, Fei; Dong, Xinping; Chen, Hong

doi:10.2528/pier11052203

Cited by 27 publications

(21 citation statements)

References 61 publications

(47 reference statements)

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“…Similarly, for N > 2, with Eqs. (10) and (12), we can analytically calculate the peaks frequencies which will be again well consistent with Figure 2.…”

Section: Effect Of Number Of Periodssupporting

confidence: 56%

“…The other type called mu-negative (MNG) is that a medium has a negative real part of complex permeability but with a positive real permittivity. There have been reports on the basic and applied researches based on the use of SNG materials [10][11][12][13][14][15]. Electromagnetic waves in an SNG medium will be evanescent and thus it cannot propagate in the medium.…”

Section: Introductionmentioning

confidence: 99%

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Design and Analysis of Multichannel Transmission Filter Based on the Single-Negative Photonic Crystal

Wu¹,

Lee²,

Jian³

2013

PIER

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Abstract-In this work, the multiple filtering phenomenon in a photonic crystal made of single-negative (SNG) materials is investigated. We consider a finite photonic crystal (AB) N immersed in air, in which A, B are epsilon-negative (ENG) and mu-negative (MNG) materials, respectively, and N is the stack number. It is found that such a photonic crystal can function as a multichannel transmission filter with a channel number equal to N −1. The required condition is that the thickness of MNG layer must be larger than that of ENG layer when magnetic plasma frequency is greater than electric plasma frequency. The channel frequencies can be red-shifted as the thickness of MNG layer decreases. The channel positions can be tuned by the incidence angle for both TE and TM polarizations. That is, the peak frequency is blue-shifted when the angle of incidence increases. Additionally, the influence of the static permeability of ENG medium and permittivity of MNG medium is also illustrated. The proposed structure can thus be used to design as a tunable multichannel filter which is of technical use in signal processing.

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“…Similarly, for N > 2, with Eqs. (10) and (12), we can analytically calculate the peaks frequencies which will be again well consistent with Figure 2.…”

Section: Effect Of Number Of Periodssupporting

confidence: 56%

Section: Introductionmentioning

confidence: 99%

Design and Analysis of Multichannel Transmission Filter Based on the Single-Negative Photonic Crystal

Wu¹,

Lee²,

Jian³

2013

PIER

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“…Transmission line (TL) is an important device for guiding and propagating electromagnetic waves in a special band, and it has been widely used in communications [1,2], pulse modulation and signal measurement [3][4][5][6], microwave technology [7][8][9][10] and pulsed power technology [11][12][13][14][15]. Every TL has its own characteristic impedance, and the impedance of a dispersive TL changes in line with the work frequency [15,16].…”

Section: Introductionmentioning

confidence: 99%

Effects of the Inductive Port of Blumlein Transmission Line on the Reflection and Transmission Characteristics of Electromagnetic Waves

Liu¹

2013

PIER

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Abstract-The Blumlein transmission line (BTL) has broad applications in pulse modulation, microwave technology and pulsed power technology. In this paper, a new theoretical method for variable reflection and transmission of electromagnetic waves at the inductive port of transmission line is put forward, in order to analyze the wave reflection characteristics of BTL at the inductive port formed by a saturated magnetic switch. At the inductive port, the variable reflection and transmission mechanisms of the voltage waves traveling through the BTL are analyzed in detail, and the inductive effects on the square voltage pulse of load formed by the BTL are also studied. Simulation and experimental results both demonstrated the proposed new theoretical method which shows great value on highpower microwave technology, high-power pulse forming, pulse shaping and modulation.

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“…A lot of researches are interested in a single rectenna or a low power rectenna array at a fixed transmission distance [2][3][4][5][6][7][8][9][10][11]. In an MPT system, a rectenna array at a level of several watts is convenient and useful [9].…”

Section: Introductionmentioning

confidence: 99%

Study on an S-Band Rectenna Array for Wireless Microwave Power Transmission

Huang¹,

Zhang²,

Chen³

et al. 2013

PIER

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Abstract-The microwave power transmission is an approach for wireless power transmission. As an important component of a microwave wireless power transmission systems, microwave rectennas are widely studied. A rectenna based on a microstrip dipole antenna and a microwave rectifier with high conversion efficiency were designed at 2.45 GHz. The dipole antenna achieved a gain of 5.2 dBi, a return loss greater than 10 dB, and a bandwidth of 20%. The microwave to DC (MW-DC) conversion efficiency of the rectifier was measured as 83% with 20 dBm input power and 600 Ω load. There are 72 rectennas to form an array with an area of 50 cm by 50 cm. The measured results show that the arrangement of the rectenna connection is an effective way to improve the total conversion efficiency, when the microwave power distribution is not uniform on rectenna array. The experimental results show that the highest microwave power transmission efficiency reaches 67.6%.

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Tunable Single-Negative Metamaterials Based on Microstrip Transmission Line With Varactor Diodes Loading

Cited by 27 publications

References 61 publications

Design and Analysis of Multichannel Transmission Filter Based on the Single-Negative Photonic Crystal

Design and Analysis of Multichannel Transmission Filter Based on the Single-Negative Photonic Crystal

Effects of the Inductive Port of Blumlein Transmission Line on the Reflection and Transmission Characteristics of Electromagnetic Waves

Study on an S-Band Rectenna Array for Wireless Microwave Power Transmission

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