Journal ArticleDOI
Resonant frequency of circular microstrip antennas with and without air gaps
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TLDR
In this article, an improved analytical model is presented for calculating the resonant frequency of circular microstrip antennas with and without air gaps, which is widely applicable to all patch diameters-from very large to very small compared to the height of the dielectric medium below the patch.Abstract:
An improved analytical model is presented for calculating the resonant frequency of circular microstrip antennas with and without air gaps. Unlike the previous models, the present one is widely applicable to all patch diameters-from very large to very small compared to the height of the dielectric medium below the patch and also to the substrates covering the entire range of dielectric constants. The computed results for different antenna dimensions and modes of resonance are compared with the experimental values.read more
Citations
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Journal ArticleDOI
Broadband Semielliptical Patch Antenna with Semicircular Ring Slot for WiMax Application
TL;DR: In this paper, the design and analysis of a semielliptical patch antenna modified by cutting semicircular ring slot in patch geometry and obtained results are discussed, the reported antenna is designed on a multilayered substrate material having two glass epoxy FR-4 substrates separated by a thin foam substrate having thickness 1.0 mm.
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A compact multi‐slots loaded gap coupled CP antenna with DGS for WLAN/WiMAX applications
Proceedings ArticleDOI
Optimization of Resonant Frequency of Circular Microstrip Antenna with and without Air Gaps Using Bacterial Foraging Optimization Technique
TL;DR: The novel technique is applied in conjunction with the developed expressions to calculate the resonant frequency of circular microstrip antenna, with and without air gaps, of any dimension and any dielectric substrate.
Proceedings ArticleDOI
Design of dual band sawtooth patch antenna using PBG structure
TL;DR: In this paper, a design strategy using periodic dielectric, metallic, or composite Photonic Band Gap (PBG) structure is proposed for X-band and Ku-band (11.13 GHz to 13.88 GHz).
The Study on Bandwidth Enhancement of Rectangular Microstrip Patch Antenna (RMPA) for Wireless Application
H. R. Gajera,C. N. Anoop +1 more
TL;DR: In this paper, a simple rectangular microstrip patch antenna based on meandering and embedded slots was proposed for wireless broad band and internet-2300-2390 MHz (WiBro).
References
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Journal ArticleDOI
Rectangular and Circular Microstrip Disk Capacitors and Resonators
Ingo Wolff,N. Knoppik +1 more
TL;DR: In this paper, a simple method is described to calculate the capacitances of rectangular and circular microstrip disk capacitors, and the influence of the fringing field on the resonance frequencies of microstrip disks resonators is calculated.
Journal ArticleDOI
Resonant frequency of a circular disc, printed-circuit antenna
TL;DR: In this article, the resonant frequency of a planar, circular disc antenna was obtained in analytical form for a printed-circuit board, where the low profile antenna is separated from the ground plane only by a thin layer of dielectric material.
Journal ArticleDOI
Effects of Fringing Fields on the Capacitance of Circular Microstrip Disk
Weng Cho Chew,Jin Au Kong +1 more
TL;DR: In this paper, the effects of fringing fields on the capacitance of a circular microstrip disk are studied with the dual integral equation formalism for practical microstrip circuits when the substrate thickness is small.
Journal ArticleDOI
Circular resonant structures in microstrip
TL;DR: In this paper, the mode patterns of circular disc resonant sections are analyzed and the radiation losses are expected to be small for the dominant mode, which would therefore have the highest Q value.
Journal ArticleDOI
Circular-disk microstrip antenna with an air gap
Kai-Fong Lee,K. Ho,J.S. Dahele +2 more
TL;DR: In this paper, the cavity-model theory was applied to a 5 cm circular-disk microstrip antenna with an air gap between the substrate and the ground plane, and a simple formula for the resonant frequencies was obtained.