Accession Number:

ADD002702

Title:

Broadband Omnidirectional RF Field Intensity Indicating Device.

Descriptive Note:

Patent,

Corporate Author:

DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s):

• Cavanagh,John F.
• Vaught,Dennis E.
• Wolfe,Hugh K.

Report Date:

1976-03-30

Pagination or Media Count:

7.0

Abstract:

The patent describes a device for indicating the intensity of the vertical component of an incident electromagnetic field independently of the frequency or the direction of the field. It uses a dual-loop antenna, current transformers and a means for combining voltage signals. The two antenna loops are planar and the planes of the loops are disposed orthogonally to each other. The loops are arranged to intersect at a common central axis, and the loops are thus symmetrically disposed about the axis. When a source of electromagnetic radiation is incident on the antenna, a current is generated in the loops which is then transformed into a voltage and combined to produce an output which is independent of frequency, of the direction of the field, and is thus representative of the total vertical field intensity.

Descriptors:

• *Measuring instruments
• *Patents
• Field intensity
• Radio fields
• Omnidirectional
• Electromagnetic fields

Subject Categories:

• Test Facilities, Equipment and Methods

Distribution Statement:

APPROVED FOR PUBLIC RELEASE