[Legacy Report] Blade Antennas for Direction Finding

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Overview

Direction Finding is any technique that determines the direction of a radio transmitter. It provides the determination of the position, velocity, and other characteristics (size, shape, etc.) of an object or it obtains information relating to these parameters by means of propagation properties of radio waves. In Defense Systems, direction finding can be used for gathering military intelligence, locate radars and jamming systems, and guiding weapons and artillery shells towards a target. For supersonic aircraft, circular arrays may be mounted permanently on the under carriage of the aircraft or be part of an external pod. The elements of the circular array can be directional or omni-directional antennas that may be coupled with digital or analog beamforming networks for directional accuracy. The antennas employed for such a supersonic application are typically blade antennas. Their performance is presented in this paper.

Dr. John Howard has been an Associate Professor at Chelsea College, University of London from 1976 to 1978 teaching Electromagnetic Theory. From 1978 to 1979, Dr. Howard was a Principal Member of Staff at the Electronic Counter Measures Division of British Aerospace, Stevenage, England. From 1979 to 1981, Dr. Howard was Section Head of the Microwave Department at the Radar and Missile Systems Division of Marconi Space and Defense Systems, Frimley, England. There, Dr. Howard was involved in a number of Radar and Electronic Counter Measure Systems with a team of 23 Microwave and Electronic Engineers. In 1982, Dr. Howard was invited to join the RCA Astro Space Center in Princeton, New Jersey, USA as Principal Member of Staff. The same year, Dr. Howard received the prestigious award for Authors and Inventors provided every year to the best engineer of RCA Astro Space Center. From 1983 to 1986, Dr. Howard was Principal Member of Staff and a member of the Tiger Research Team at Narda Microwave Corporation, a Loral Subsidiary. There, Dr. Howard developed numerous components and sub-systems for the Defense and Communication Industries. During the same period, Dr. Howard was an Adjunct Professor at the Polytechnic of New York, teaching Advanced Electromagnetic Theory, at BS level. From 1986 to 1989, Dr. Howard was Vice President of Engineering at FEL Corporation in charge of developing a number of new products and responsible for the Financial Management of the Engineering Division. In 1989, Dr. Howard established Microwave Research and Development, MRD, in Newark, New Jersey for the development of advanced RF and Microwave components and subsystems. At the same time, Dr, Howard became an Adjunct Professor at the New Jersey Institute of Technology in Newark, New Jersey teaching Advanced Electromagnetic Theory at the MS level. In 1992, Microwave Research and Development was acquired by Merrimac Industries in West Caldwell, New Jersey where Dr. Howard received the position of Senior Vice President/ Chief Scientist, being third in line in the corporate structure of the company. In 1994, Dr. Howard proceeded to establish a new company to assist in the development of a number of Military Systems for the US Government. Dr. Howard established ETI, Inc. to service initially the United States Defense requirements and later a number of subsidiaries and affiliate companies for Defense, Commercial Programs and Business Development and Acquisitions. ETI, Inc and its group of companies are presently involved in major US and European Defense Contracts as well as a number of Commercial Programs and Business Transactions. Dr. Howard, in addition to heading the ETI Group of Companies and being involved in the business aspects of the group, is still providing engineering leadership in a number of Advanced Defense and Communications programs. This is evident form his over 84 publications in various Scientific Journals and Conferences. In addition, Dr. Howard has chaired a number of Scientific Conferences both in the United States and overseas. Dr. Howard is a member of various Engineering Societies. He is a senior member of the IEEE and a Chartered Engineer for the IET.

• Date: 06 Oct 2016
• Time: 03:00 PM UTC to 03:30 PM UTC
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• E. Hanover, New Jersey
• United States

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• Co-sponsored by AP/MTT Chapter