An Investigation into the Potential for Developing a Successful Log- Periodic Half Square Antenna with Dual Feed
Abstract
The investigation of a uniformly periodic half square array antenna with dual feed was conducted to provide more information about the potential of the structure as a log-periodic antenna for use by the military. Utilizing the Numerical Electromagnetics Code (NEC), an experimental investigation of the near field characteristics and the far field radiations patterns was conducted on a modeled version of the structure to identify the necessary performance characteristics of a successful log-periodic antenna. In the near field investigation., the Brillouin diagram was used extensively to analyze performance characteristics generated by the K to Beta relationship where Beta was determined from the relative amplitude and phase of the near magnetic field created by the structure under various conditions. The far field radiation patterns were used to check the results of the Brillouin diagram and observe the presence of end and truncation effects.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1986
- Accession Number
- ADA177351
Entities
People
- John R. Johnsen
Organizations
- Naval Postgraduate School