Analysis and Optimization of Conformal Patch Excited Wideband DRA of Several Shapes
-
Pramod Kumar
,
Ashok Kumar
Abstract
In this paper various shapes of DR antennas excited by common feed have been proposed and successfully implemented for wideband applications. Proposed structures are Hemispherical, Arrow-shaped and Triangular DRA, while common excited feed is inverted trapezoidal conformal patch. These shapes of DR offer significant optimization in several parameters such as impedance bandwidth, peak gain and bandwidth per unit volume of the antenna. By using inverted trapezoidal patch feed mechanism an impedance bandwidth (VSWR<2) of about 63 % for hemispherical shape, 66 % for arrow shape, and 72 % for triangular shape DRA has been achieved with maximum bandwidth per unit volume. Proposed wideband DRAs i. e. triangular, hemispherical, and arrow shapes of DR antennas cover almost complete C-band (4 GHz–8 GHz) frequency spectrum of microwave. The average peak gain within the operating band for hemispherical, arrow, and triangular shape DRA are about 5, 5.4, and 5.5 dB respectively. A comparative analysis of proposed structures for various antenna parameters has been analyzed by HFSS (High-Frequency Structure Simulator) and validated by experimental results.
Acknowledgment
The authors would like to acknowledge Dr. J. Kumar, Microwave Plasma Group, Institute for Plasma Research, Gandhinagar, Gujarat, India; Mr. A. Kumar, Scientist C, Antenna Div., SAMEER, Kolkata, India and Dr. S. V. Tiwari, Technion –Israel Institute of Technology, Haifa, Israel, for their support.
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Articles in the same Issue
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Articles in the same Issue
- Frontmatter
- Frequency Reconfigurable Antenna for Deca-Band 5 G/LTE/WWAN Mobile Terminal Applications
- Printed Antenna Array with Flat-Top Radiation Pattern
- CPW-fed Circularly Polarized Slot Antenna with Small Gap and Stick-shaped Shorted Strip for UHF FRID Readers
- Frequency Reconfigurable Quasi-Yagi Antenna with a Novel Balun Loading Four PIN Diodes
- Analysis and Optimization of Conformal Patch Excited Wideband DRA of Several Shapes
- Synthesis of Conformal Phased Antenna Arrays With A Novel Multiobjective Invasive Weed Optimization Algorithm
- Stopband-Extended and Size-Miniaturized Low-Pass Filter Based on Interdigital Capacitor Loaded Hairpin Resonator with Four Transmission Zeros
- Electronically Reconfigurable Varactor-Loaded HMSIW Bandpass Filter
- Differential BPFs with Multiple Transmission Zeros Based on Terminated Coupled Lines
- Wideband Bandpass Filter with High Selectivity and an Adjustable Notched-band Adopting a Multi-mode Resonator
- UWB Bandpass Filter with Ultra-wide Stopband based on Ring Resonator
- Design of Compact Wilkinson Power Divider with Harmonic Suppression using T-Shaped Resonators
- Dual Segment Glocal Model Based Capacitive Level Sensor (CLS) for Adhesive Material and Level Detection
- 100 GHz FMCW Radar Module Based on Broadband Schottky-diode Transceiver
- Modeling of Graphene Planar Grating in the THz Range by the Method of Singular Integral Equations
- Evanescent-Wave Reconstruction in Time Reversal System
- White Gaussian Noise – Models for Engineers
