Active Receiving Antenna System.

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Abstract:

An active antenna system for an airborne high frequency single sideband receiver comprised of a shorted loop type antenna having an inductive characteristic over the frequency range of 2.0 to 10.0MHz and which is tuned to resonance at a selected operating frequency by shunting the antenna at its feedpoint by selectively switched sets of voltage variable capacitors. Also coupled to the feedpoint is a field effect transistor which is adapted to provide radio frequency amplification. Impedance matching between the output of the field effect transistor and the input of a radio frequency receiver is further provided a transistor configured as an emitter follower. Author

Author(s):
Brune, John F.
Author Organization(s):
DEPARTMENT OF THE ARMY WASHINGTON DC
Descriptive Note:
Patent Application,
Pagination:
0021

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Availability: This Government-owned Invention Available For U.s. Licensing And, Possibly, For Foreign Licensing. Copy Of Application Available Ntis.

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
PAT-APPL-461 766
 Subject Terms
Modernization Areas:
Microelectronics
Communities of Interest:
Advanced Electronics
Descriptor(s):
*Patent applications, *Loop antennas, *Radio receivers, *Aircraft antennas, *Receivers, Antenna feeds, Single sideband communications, Impedance matching, Amplification, Field effect transistors, Coupling(Interaction), Range(Extremes), Variable capacitors, Frequency, Voltage, Switching, Transistors, Radiofrequency, Feeding, Antennas
Field(s)/Group(s):
Electrical and Electronic Equipment, Radio Communications
Keyword(s):
Grounded loop antennas, Active antennas
Report Date:
1983 Jan 28