A Novel Microstrip Patch Antenna With Large Impedance Bandwidth in VHF/Uhf Rang

Chakravarty, Tapas; Roy, Sushim Mukul; Sanyal, Sugata; Де, Асок

doi:10.2528/pier04102101

Cited by 30 publications

(13 citation statements)

References 6 publications

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“…A novel low profile wideband UHF antenna is proposed in [9], while the size is large, and manufacture of conic is difficult. In [10], the impedance bandwidth of the patch antenna is wide, while the measured gains are low in all the bands. In this paper, a double-tuned matching antenna is proposed to achieve a broadband performance for UHF RFID applications which can reduce the complexity of lumped tuning components.…”

Section: Introductionmentioning

confidence: 92%

A Uhf Rfid Antenna Using Double-Tuned Impedance Matching for Bandwidth Enhancement

Wang¹,

Liu²,

Li³

et al. 2017

PIER Letters

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Abstract-A broadband ultra-high-frequency (UHF) Radio Frequency Identification (RFID) antenna using double-tuned impedance matching theory is proposed. This paper presents a proximity coupled vertical meandered strip feed technique based on double-tuned impedance match which results in a wide bandwidth. This antenna mainly consists of a rectangular ground plane, a U-shaped radiation patch, and a suspended vertical meandered strip (VMS) by mesas of rotated Γ-shaped strip. The Ushaped radiation patch is fed by the VMS. The simulated and measured results show that the antenna has a very wide impedance matching bandwidth of 150 MHz (820-970 MHz) or 16.8% with the voltage standing wave ration (VSWR) less than 1.5 and achieves a high gain level about 8.5 dBi. Therefore, the proposed antenna can cover the entire UHF band of 840-960 MHz and is a good candidate for universal UHF RFID applications.

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Section: Introductionmentioning

confidence: 92%

A Uhf Rfid Antenna Using Double-Tuned Impedance Matching for Bandwidth Enhancement

Wang¹,

Liu²,

Li³

et al. 2017

PIER Letters

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show abstract

“…The rapid growth of wireless and mobile communication systems have increased the demand for wider bandwidth and smaller devices [1][2][3]. Antennas following this trend have to be compact and integrated while satisfying desired impedance behaviour and radiation characteristics.…”

Section: Introductionmentioning

confidence: 99%

Radiations from a right triangular patch antenna with and without air gap

Kimothi

Tiwari

Saxena

et al. 2008

2008 International Conference on Recent Advances in Microwave Theory and Applications

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The simulated and measured results of a right triangular microstrip patch antenna (30°-90°-60°) with and without air gap are presented in this communication. A right triangular patch antenna resonates at a single frequency but on application of small air gap of 1.5 mm between radiating patch and ground plane, it not only resonates at two frequencies but also shows marked improvement in its bandwidth, gain and directivity.

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“…Loading the circular patch antenna by R-L-C circuit can control the zero fundamental mode resonance frequency because it is a resonance circuit added to the antenna which is simply a cavity, hence a dual band operation can be obtained [7,8]. This zero fundamental mode can be tuned by changing the values of the lumped R and C elements while L is controlled by changing the radius of the shorting pin.…”

Section: Antenna Designmentioning

confidence: 99%