Accurate CAD formulation for rectangular microstrip patch antennas

doi:10.1109/APS.2005.1552192

Home
/
Papers
/
Accurate CAD formulation for rectangular microstrip patch antennas

Proceedings Article•DOI•

Accurate CAD formulation for rectangular microstrip patch antennas

S. Chattopadhyay¹, Jawad Y. Siddiqui¹, Debatosh Guha¹•Institutions (1)

University of Calcutta¹

03 Jul 2005-pp 122-125

TL;DR: In this article, a new CAD formulation is proposed to estimate accurately the resonant frequency of rectangular microstrip patches having variable aspect ratios, which shows much closer approximations when compared with the measurements.

read less

Abstract: A new CAD formulation is proposed to estimate accurately the resonant frequency of rectangular microstrip patches having variable aspect ratios. The computed results are verified by several experiments. Compared to earlier ones, the proposed formula shows much closer approximations when compared with the measurements.

...read moreread less

Citations

PDF

Open Access

More filters

Proceedings Article•DOI•

CAD of mechanically tunable rectangular microstrip patch with variable aspect ratio

[...]

Sudipta Chattopadhyay¹, Manotosh Biswas², Jawad Y. Siddiqui², Debatosh Guha²•Institutions (2)

Siliguri Institute of Technology¹, University of Calcutta²

01 Dec 2007

TL;DR: The effect of aspect ratio of rectangular microstrip patch on its input impedance is demonstrated and computed results have been verified with own experiments and simulated data showing very close agreement amongst them.

...read moreread less

Abstract: An improved CAD formulation is proposed to determine accurate input impedance of rectangular microstrip patches with variable aspect ratio. This paper demonstrate the effect of aspect ratio of rectangular microstrip patch on its input impedance. The computed results have been verified with our own experiments and simulated data showing very close agreement amongst them.

...read moreread less

2 citations

Cites methods from "Accurate CAD formulation for rectan..."

...A simplified schematic diagram of probe fed rectangular microstrip patch is shown in Fig. 1 having length L, and width w. One very accurate CAD formulation to calculate resonant frequency of rectangular microstrip patch with variable aspect ratio is proposed in [ 2 ]....
[...]
...The formulation proposed in [ 2 ] is utilized and extended to calculate the input impedance of rectangular microstrip patch having variable aspect ratio....
[...]

Proceedings Article•DOI•

Microstrip radiating structures: Theoretical and experimental investigations executed in recent years at the University of Calcutta

[...]

Debatosh Guha¹, Jawad Y. Siddiqui¹, Manotosh Biswas¹, S. Chattopadhyay¹, S. Biswas - Show less +1 more•Institutions (1)

University of Calcutta¹

01 Dec 2007

TL;DR: In this article, a comprehensive review of research on microstrip antennas conducted at the Institute of radio physics and electronics, University of Calcutta with an emphasis to those done in recent years is presented.

...read moreread less

Abstract: In this paper, we have presented a comprehensive review of research on microstrip antennas conducted at the Institute of radio Physics and Electronics, University of Calcutta with an emphasis to those done in recent years.

...read moreread less

1 citations

Additional excerpts

...Another common geometry of microstrip antenna, the rectangular shape is also investigated and an improved design formulation is proposed to determine the accurate resonant frequency and input impedance of the rectangular microstrip antenna with and without air gap for various W/L ratio [15],[16]....
[...]

References

PDF

Open Access

More filters

Journal Article•DOI•

An experimental investigation of electrically thick rectangular microstrip antennas

[...]

Esin Chang¹, Stuart A. Long², W. Richards²•Institutions (2)

Shell Oil Company¹, University of Houston²

01 Jun 1986-IEEE Transactions on Antennas and Propagation

TL;DR: In this paper, the electromagnetic properties of rectangular microstrip antennas were investigated experimentally, and the bandwidth was calculated as a function of electrical thickness and the antenna radiation patterns were measured.

...read moreread less

Abstract: The electromagnetic properties of electrically thick rectangular microstrip antennas were investigated experimentally. Antennas were fabricated with different patch sizes and with electrical thicknesses ranging from 0.03 to 0.23 wavelengths in the dielectric substrate. The resonant frequencies were measured and compared to existing formulas. The bandwidth was calculated as a function of electrical thickness and the antenna radiation patterns were measured.

...read moreread less

347 citations

"Accurate CAD formulation for rectan..." refers background in this paper

...Figure 2 shows the computed and measured [4] resonant frequencies of a rectangular microstrip patch as a function of substrate thickness h....
[...]

Journal Article•DOI•

Microstrip antennas on synthesized low dielectric-constant substrates

[...]

G.P. Gauthier¹, A. Courtay¹, Gabriel M. Rebeiz¹•Institutions (1)

University of Michigan¹

01 Aug 1997-IEEE Transactions on Antennas and Propagation

TL;DR: In this paper, a microstrip antenna on a micromachined 635-/spl mu/m thick substrate was used to synthesize a localized low dielectric-constant environment.

...read moreread less

Abstract: Micromachining techniques using closely spaced holes have been used underneath a microstrip antenna on a high dielectric-constant substrate (/spl epsiv//sub r/=10.8) to synthesize a localized low dielectric-constant environment (/spl epsiv//sub r/=2.3). The measured radiation efficiency of a microstrip antenna on a micromachined 635-/spl mu/m thick /spl epsiv//sub r/=10.8 Duroid 6010 substrate increased from 48/spl plusmn/3% to 73/spl plusmn/3% at 12.8-13.0 GHz (including 3.3-cm feed line losses). We believe that this technique can be applied to millimeter-wave antennas (microstrip, dipoles, slots, etc.) on silicon and GaAs substrates to result in relatively wideband (3-6%) monolithic microwave integrated circuits (MMIC) active antenna modules for phased-arrays and collision-avoidance systems.

...read moreread less

231 citations

Journal Article•DOI•

Resonant frequency of circular microstrip antennas with and without air gaps

[...]

Debatosh Guha¹•Institutions (1)

University of Calcutta¹

01 Jan 2001-IEEE Transactions on Antennas and Propagation

TL;DR: 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.

...read moreread less

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 moreread less

123 citations

"Accurate CAD formulation for rectan..." refers background or methods in this paper

...44xa (2) The effective radius of a circular microstrip patch due to the fringing is given as (1] a=a(l+q), where q is the fringing factor derived in [1]....
[...]
...In this paper, we propose yet another CAD formula based on one recent CAD model reported for circular patch in [1] to accurately estimate the resonant frequency of any rectangular patch with any length-to-width ratios....
[...]

Journal Article•DOI•

Design considerations for rectangular microstrip antenna elements with various substrate thicknesses

[...]

Mehmet Kara¹•Institutions (1)

Defence Science and Technology Organisation¹

05 Oct 1998-Microwave and Optical Technology Letters

TL;DR: In this article, a set of graphs for a relevant set of parameters is presented which enables the designer to clearly see the tradeoffs involved in choosing specific parameters for the antenna and several parameters that are deterrents to the proper functioning of the antennas are also identified.

...read moreread less

Abstract: The effective design and analysis of microstrip antennas presupposes the quantitative knowledge of the effects of the physical and mechanical properties of the patch, the ground plane, and the substrate material on electromagnetic properties of the antenna. The behavior of antenna electromagnetic properties for varying mechanical and physical properties of the patch, the ground plane, and the substrate material is presented. A set of graphs for a relevant set of parameters is presented which enables the designer to clearly see the tradeoffs involved in choosing specific parameters for the antenna. Several parameters that are deterrents to the proper functioning of the antennas are also identified. © 1998 John Wiley & Sons, Inc. Microwave Opt Technol Lett 19: 111–121, 1998.

...read moreread less

8 citations

"Accurate CAD formulation for rectan..." refers background in this paper

...TABLE I Comparison of the measured [2] and computed resonant frequencies for rectangular patches on low permittivity substrates with W/L < 1....
[...]
...55 Patch Patch WiL Substrate Resonant frequencyf, (GHz) length length thickness Measured Computed L W h (mm) [2] [Present] (mm) (mm) 13....
[...]
...Results Table I shows the comparison ofthe measured [2] and computed resonant frequencies for rectangular microstrip patches printed on low permittivity substrates of different thickness with various W/L ratio <1....
[...]