Low Volume High Power Radiating Transmitter.
Final technical rept.,
GENERAL ELECTRIC CO SYRACUSE N Y HEAVY MILITARY ELECTRONIC SYSTEMS
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Conventional antenna arrays utilize element spacings of approximately one-half wavelength and are configured to minimize mutual coupling effects. The radiating impedance of conventional array elements is predominately the self-impedance of the element. In this program a distributed transmitter feeding a dense array of elements was developed and demonstrated at UHF. The transmitter consists of a total of two hundred fifty-six radiating elements within a one-square wavelength area. Each element is driven by a one-watt amplifier. In the densely packed array mutual coupling effects are used to advantage. The self-impedance of an isolated small element is impractical to drive. In the array environment the radiation resistance is increased through mutual effects to a magnitude suitable for efficient excitation from conventional solid-state amplifiers. This program demonstrated the feasibility of achieving 1 reasonable radiation impedance with small closely-spaced elements, and 2 efficient and coherent power addition in space of energy radiated from a large number of densely-spaced elements. Author
- Electrical and Electronic Equipment
- Active and Passive Radar Detection and Equipment