Resonant frequency and radiation efficiency of meander line antennas

Endo, Tsutomu; Sunahara, Yonehiko; Satoh, S.; Katagi, Takashi

doi:10.1002/(sici)1520-6432(200001)83:1<52::aid-ecjb7>3.0.co;2-7

Cited by 64 publications

(17 citation statements)

References 3 publications

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“…In the previous literature, simple meander line antennas have been modeled using an equivalent inductance circuit [5]. The meander sections in the M2 and M4 meander line antennas can be first modeled as equivalent inductances as shown in Fig.…”

Section: Compressed Antenna Geometry and Lowering Resonant Frequmentioning

confidence: 99%

The effectiveness of space-filling fractal geometry in lowering resonant frequency

Best

Morrow

2002

Antennas Wirel. Propag. Lett.

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The space-filling fractal geometry of the Hilbert curve is examined in terms of its effectiveness in lowering resonant frequency. It is demonstrated that the complex geometry associated with the space-filling Hilbert fractal curve is inherently ineffective in lowering resonant frequency compared to other less complex geometries of the same size and total wire length. The effectiveness of the geometry in lowering resonant frequency is a direct function of the current vector alignment established by the wire layout.

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Section: Compressed Antenna Geometry and Lowering Resonant Frequmentioning

confidence: 99%

The effectiveness of space-filling fractal geometry in lowering resonant frequency

Best

Morrow

2002

Antennas Wirel. Propag. Lett.

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“…For small antenna applications, an appropriate loading inside an antenna can lead to size reduction and proper matching. Typically, the capacitive loading or inductive loading are common techniques, which eventually increase electrical length of an antenna, to make an antenna physically small [2], [3]. However, when both loadings are simultaneously applied inside an antenna, a resonance characteristic that results in antenna size reduction can be obtained.…”

Section: B Type-1 (Meander-line Loop Dipole Composite Antenna)mentioning

confidence: 99%

Matching Techniques for Miniaturized UHF RFID Loop Antennas

Kim

Park

2009

Antennas Wirel. Propag. Lett.

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Two types of matching techniques are proposed for the UHF RFID antennas in Korea. One is to create dual-resonance mode inside loop antenna, and the other is to use folded dipole loop antenna with capacitive loading. The measured maximum gains are 2 9 and 1.8 dBi, respectively. In both cases, the measured bandwidths are 6 and 8 MHz. The proposed antenna has achieved 80% size reduction compared with a one-wavelength long loop antenna.Index Terms-Loop antenna, matching, radio frequency identification (RFID), small antenna.

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“…An alternative planar FDA design with an open geometry, as shown in Fig. 1, has been proposed and demonstrated for enhancing output power from THz photomixers because of the improved impedance matching [27][28][29]. In addition, some preliminary Schottky-diode-based detector designs using lens-coupled planar FDAs (LC-FDAs) have been demonstrated experimentally at 75 and 200 GHz, showing promising performance [25,30].…”

Section: Introductionmentioning

confidence: 99%

Lens‐coupled folded‐dipole antennas for terahertz detection and imaging

Rahman¹,

Jiang²,

Xing³

et al. 2015

IET microw. antennas propagation

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The authors report the design, simulation and characterisation of lens-coupled folded-dipole antennas (LC-FDAs) for terahertz (THz) detection and focal-plane imaging arrays. LC-FDAs operating at 200 GHz have been designed on semiinsulating silicon wafers with a resistivity larger than 20 000 Ω·cm. Even-odd mode analysis (EOA) has been performed to extract the currents of the two modes. The embedding impedance of the designed LC-FDAs has been simulated using conventional numerical electromagnetics, and the results show that a wide range of impedance values (both real and imaginary parts) can be achieved by changing the antenna geometry. This property makes LC-FDAs suitable for highperformance THz detectors in which impedance matching between antennas and devices is desired. From the currents calculated using EOA, the LC-FDA far-field radiation patterns, antenna directivity and Gaussian coupling efficiency for different lens structures have been examined using ray-tracing techniques. Good agreement between calculation results and measurement has been observed demonstrating the effectiveness of the above analysis approach. The single element FDA design has also been explored for use in high-resolution two-dimensional THz focal plane arrays by optimising the lens structure and evaluating the off-axis radiation patterns.

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Resonant frequency and radiation efficiency of meander line antennas

Cited by 64 publications

References 3 publications

The effectiveness of space-filling fractal geometry in lowering resonant frequency

The effectiveness of space-filling fractal geometry in lowering resonant frequency

Matching Techniques for Miniaturized UHF RFID Loop Antennas

Lens‐coupled folded‐dipole antennas for terahertz detection and imaging

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