Conformal HF loop antenna
First Claim
1. A conformal HF two-way radio loop antenna comprising an inverted generally U-shaped, continuous, single, radiating metal strip connected at one end to ground and at its other end to a grounded impedance matching device, said metal strip being one of low loss/low resistance material with dimensions such as to make it compatible with the characteristics of said impedance matching device and secured to a non-conductive, relatively rigid material on top of a metal frame vehicle body, said strip being secured to said rigid material through a conducting plate.
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Abstract
A flush-mounted HF (2 to 30 megahertz) transmitting and receiving antenna is developed which is especially suitable for installation on a Jeep (CJ7) type vehicle. This antenna is formed by bonding a copper strip to the inside surface of the non-metallic top of the vehicle. The strip is grounded to the vehicle body just aft of the driver'"'"'s door and runs overhead to the aft right lower corner of the non-metallic vehicle top which becomes the feed point for the antenna. The strip is connected in two places to an isolated aluminum skin bonded to the top of the vehicle. The antenna is suitable for use as a transmitting antenna provided an impedance matching device (coupler) is inserted between the antenna and the transmitter/receiver.
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Citations
5 Claims
- 1. A conformal HF two-way radio loop antenna comprising an inverted generally U-shaped, continuous, single, radiating metal strip connected at one end to ground and at its other end to a grounded impedance matching device, said metal strip being one of low loss/low resistance material with dimensions such as to make it compatible with the characteristics of said impedance matching device and secured to a non-conductive, relatively rigid material on top of a metal frame vehicle body, said strip being secured to said rigid material through a conducting plate.
Specification