A Novel Compact Wideband Dual-Frequency Rectangular Shaped Antenna For X-Band Applications

Antenna and Wave Propagation

Research Paper (undergraduate), 2014

4 Pages, Grade: 10



In this paper, a novel compact designs of rectangular shaped antenna are proposed. The proposed antenna consists of rectangular shaped patch of Lxp=11.86 mm by Lyp=9.06 mm. The antenna is consists of four circled concave on four corners of rectangular patch. All simulation was done by using Rogers RT/duroid 5880 substrate material having dielectric constant 2.2 and dielectric loss tangent tan δ =0.0009.The designs were analyzed by Finite Element Method (FEM) based HFSS™ Electromagnetic simulator software. Return loss, VSWR plot, smith chart and radiation pattern plots were observed and plotted for all designed antennas. The proposed antenna operates on X-Band (8-12 GHz) frequencies.

Key Words— Microstrip Patch Antenna (MSA), Substrate Permittivity, Return Loss and VSWR.


In modern wireless communication and RF communications wideband and multiband antenna plays a significant role. Microstrip antennas are very popular for their robust design, compactness and better performance for various applications. A microstrip patch antenna is very attractive due to its low cost, conformability and ease of manufacture [1]. A standard configuration for a microstrip antenna is the single rectangular patch which consists of two parallel conducting layers separated by a single thin dielectric substrate material. The lower conductor functions as a ground plane and the upper conductor represent the antenna radiating part or conducting medium [2-4].In this paper two different antenna configurations are presented with wide band dual –frequency response in X-Band.


The proposed antenna geometry is shown in figure 1 and its tilted view is shown in figure 2. The substrate dimension was kept 36.5 × 30.5 mm with height of 1.59 mm. The rectangular patch dimension was kept 11.86 × 9.06 mm with height of 0.02 mm. Excitation to patch conductor was given using wave port. Simulations were performed with proper feed location to obtain frequency response extending from 5 GHz to 12 GHz. It gives return loss (S11) which is further used to calculate VSWR (Voltage Standing Wave Ratio). The Simulation results of proposed antenna were performed by HFSS™ which stands for High Frequency Structure Simulator. HFSS™ employs the Finite Element Method (FEM), adaptive meshing & brilliant graphics to gives us unparalleled performance and insight to all of our three dimensional EM problems. Ansoft HFSS™ can be used to calculate parameters such as S Parameters, Resonant Frequency, and radiation fields [5].

illustration not visible in this excerpt

Figure 1 Proposed Antenna Geometry 1 with four circled (radius r=2mm) concave slots on corners Patch Dimension: Lxp=11.86 mm by Lyp=9.06 mm Substrate Dimension: Lxs=36.5 mm by Lys=30.5 mm Feed location was kept variable.

illustration not visible in this excerpt

Figure 2 Tilted View


Excerpt out of 4 pages


A Novel Compact Wideband Dual-Frequency Rectangular Shaped Antenna For X-Band Applications
Antenna and Wave Propagation
Shantilal Shah Engineering College  (Shantilal Shah Engineering College Bhavnagar)
Electronics and Communication Engineering, Communication Systems Engineering
Catalog Number
ISBN (eBook)
File size
662 KB
Antenna, RF, Communication Technology, Wave Propagation, Microwaves
Quote paper
Ankit Ponkia (Author), 2014, A Novel Compact Wideband Dual-Frequency Rectangular Shaped Antenna For X-Band Applications, Munich, GRIN Verlag, https://www.grin.com/document/283052


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