

Type of Document Master's Thesis Author Parikh, Kunal Author's Email Address kparikh@vt.edu URN etd-12232003-131607 Title SIMULATION OF RECTANGULAR, SINGLE-LAYER, COAX-FED PATCH ANTENNAS USING AGILENT HIGH FREQUENCY STRUCTURE SIMULATOR (HFSS) Degree Master of Science Department Electrical and Computer Engineering Advisory Committee
Advisor Name Title Dr. Amir I. Zaghloul Committee Chair Dr. R. Michael Buehrer Committee Member Dr. William A. Davis Committee Member Keywords
- Range Limited Antenna
- simulation
- Finite Element Method
- coax-fed patch antennas
- HFSS
Date of Defense 2003-12-11 Availability unrestricted Abstract The Range Limited Antenna (RLA) is a device, which accurately estimates the range of incoming signals and rejects those that arrive from outside a certain, pre-determined range. This task is accomplished by using two multi-element arrays and applying direction finding (DF) algorithms on each of them. Rectangular, single-layer, coax-fed patch antennas are used as array elements for the specific purpose of tracking cell phones operating in the PCS band inside a given building. It is vital to ensure that the patch antenna is designed in such a manner that it resonates at the desired frequency.
This thesis introduces the Agilent High Frequency Structure Simulator (HFSS) as an effective tool for modeling electromagnetic structures. It presents a comprehensive and meticulous description of the process of modeling a rectangular coax-fed patch antenna in HFSS. Plots of S-parameter values are calculated and are compared with WIPL-D, which is another simulation software program, and with measurements performed at the George Washington University. Various important parameters of the HFSS simulation are varied and their effects are investigated to provide a deeper understanding of the program.
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