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URN etd-0822113-122607 Statistics This thesis had been viewed 1108 times. Download 3 times. Author Chin-Tung Huang Author's Email Address No Public. Department Communication Engineering Year 2012 Semester 2 Degree Master Type of Document Master's Thesis Language English Page Count 74 Title Design of Tactical HF Antennas and Their Efficiency Evaluation by Wheeler Cap Method Keyword matching network HF Wheeler Cap portable radiation efficiency radiation efficiency portable Wheeler Cap HF matching network Abstract In the future military operations, in addition to winning any form of conflict, they need also to prepare for the increase of the usual unarmed humanitarian assistance and disaster response operations.
Since the World War II, the HF communications has been excellent for direct near and long-distance military radio system, not need to rely up on relay communication facilities or satellite, and their equipment’s are of low cost, easy to operate, no subscriber costs and rapidly deployable. It permits fully military-controlled command links across tactical/strategic (short/long distances) with secured transmissions, and large-scale disaster relief operations. However, the traditional HF antenna are of relatively large physical size, such that they are not conveniently soldier-portable, so the problems for quick set-up by one signal person remain to be resolved.
Although the antenna is only part of the communication system, but good antenna design will improve the communication system reliability and sensitivity, as well as its overall performance. In this thesis, we study the HF antenna design theory, and design a tactical antenna which is of simple structure , reliable, portable and convenient to set-up. Finally, we use the Wheeler Cap method to evaluate the antenna radiation efficiency.
Advisor Committee Chi-Fang Huang - advisor
Chi-Fang Huang - co-chair
none - co-chair
The-Nan Chang - co-chair
Files Date of Defense 2013-07-22 Date of Submission 2013-08-27