Title page for ETD etd-09222005-084315


Document Type Master's Dissertation
Author De Haaij, David Martin
URN etd-09222005-084315
Document Title The design of feed networks for enhanced bandwidth operation of microstrip patch antennas
Degree M Eng (Electronic Engineering)
Department Electrical, Electronic and Computer Engineering
Supervisor
Advisor Name Title
Prof J Joubert
Keywords
  • Strip transmission lines
  • Microstrip antennas
  • Microwave antennas
Date 2003-09-01
Availability unrestricted
Abstract
This dissertation investigates a simple LC-matching network for the impedance bandwidth enhancement of microstrip patch antennas. Wideband impedance matching is a standard practice for active circuits. Simple impedance matching of antennas is also quite common, but data on wideband impedance matching of antennas is not found very much in the open literature. The matching circuit presented consists out of a resonant LC-circuit with a quarterwave matching line as part of the design. Results for a number or experimental antennas, on which the new technique was applied, are included in the report. A well-defined design procedure is also presented, and results in a relatively small circuit to implement. It is shown that the antenna VSWR bandwidth could be improved to more than double the original size in most of the antennas investigated.

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  00front.pdf 862.30 Kb 00:03:59 00:02:03 00:01:47 00:00:53 00:00:04
  01chapter1.pdf 438.59 Kb 00:02:01 00:01:02 00:00:54 00:00:27 00:00:02
  02chapter2.pdf 990.50 Kb 00:04:35 00:02:21 00:02:03 00:01:01 00:00:05
  03chapter3.pdf 2.28 Mb 00:10:33 00:05:25 00:04:45 00:02:22 00:00:12
  04chapter4.pdf 1.14 Mb 00:05:15 00:02:42 00:02:21 00:01:10 00:00:06
  05chapter5.pdf 2.43 Mb 00:11:14 00:05:46 00:05:03 00:02:31 00:00:12
  06chapter6.pdf 259.60 Kb 00:01:12 00:00:37 00:00:32 00:00:16 00:00:01
  07references.pdf 394.21 Kb 00:01:49 00:00:56 00:00:49 00:00:24 00:00:02

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