Efficient HF Submarine Antennas Presenter: Charles M. Gyenes of - PowerPoint PPT Presentation

Efficient HF Submarine Antennas Presenter: Charles M. Gyenes of HI-Q-Antennas, Inventor July 21, 2019

Hi-Q Military Antennas Submarine Antennas ABSTRACT For submarine applications, it is desirable to have broadband, efficient, extremely short HF antennas that can cover the whole band without the use of a complex internal/external tuning circuitry. A short monopole antenna is currently used except that it has the following disadvantages: it is not efficient and uses complex external tuning circuitry. An electrically efficient small packaged submarine antenna that operates at the HF band was developed using existing subminiature aperture technology. In this paper, we detail the HF submarine antenna technology and performance results focusing on existing efficient submarine HF communications antennas.

Hi-Q Military Antennas Submarine Antennas EXAMPLE SOLUTION – HMS Gotland Installation  HI-Q-4/2-30 installed on HMS Gotland Submarine HF Communications Antenna,  In service since 2008.  HI-Q antenna has higher radiation efficiency then any other short HF submarine antenna designed to date.  HI-Q antenna has only one moving part.  No external complex antenna couplers.

Hi-Q Military Antennas Submarine Antennas HMS GOTLAND Install Continued: Antenna Description  HI-Q-4/2-30 is a broadband, ultra small HF aperture, 2-30 MHz tunable antenna.  Inductively tuned from 2-20 MHz Re-Entrant Coaxial Capacity Hat antenna, a very broadband monopole from 2 - 30 MHz.  Antenna consists of a lower mast, a tunable loading coil, a Re-Entrant Capacity Hat, and an antenna controller.  Remotely tuneable (200 ms) with +24vdc (Less than 5 AMP).

Hi-Q Military Antennas Submarine Antennas HMS GOTLAND Install Continued: DIMENSIONS AND MASS  Total height: 92 inches max (includes connectors)  Diameter: 4 inches max (includes screw-bolt heads)  Weight: 20 lbs (approx) Final Test before Installation

Hi-Q Military Antennas Submarine Antennas HMS Gotland HF Antenna Installation Completed HI-Q-4/2-30 is installed on the HMS GOTLAND. Photo w/ Communications Officer.

Hi-Q Military Antennas Submarine Antennas FAMILY OF SUBMARINE ANTENNAS US Submarine Antennas HI-Q-6-2/30 HI-Q-5-2/30 HI-Q-4-2/30 HMS GOTLAND Antenna

Hi-Q HF Emergency Submarine antenna  Frequency range: 2-30 MHz  Integrated stepper motor tuning.  Half Rack power supply and RF Watt meter in the radio room.  SINGLE RF cable from radio to antenna, NO CONTROLL cables thru hull.  Power handling: 1-5kW SSB  Height: 5’ plus 7’ whip  Weight: < 25 lbs

Computed Radiation Pattern and Gain, specific to the Hi-Q-OE-1538 Mast mounted HF antenna 54” tall.

Hi-Q Military Antennas Submarine Antennas CONCLUSIONS  In this presentation, we have reviewed some of our calculated and experimental results on design of electrically short HF antennas.  The HI-Q antenna has higher radiation efficiency then any other short HF submarine antenna designed to date.  High Reliability – one moving part  NO ANTENNA COUPLER REQUIRED (See Motor Controller Pictured)  Very COST Effective

Hi-Q Military Antennas Hi-Q-6/2-30 ALE AAV-LAV-HIMARS Antenna. Mounting Spring The new Hi-Q-6/2-30 ALE AAV-LAV- HIMARS Antenna. Inspection of the AAV- LAV- HIMARS antenna by USMC

Hi-Q Military Antennas Hi-Q-6/2-30 ALE AAV-LAV-HIMARS Antenna. c Above: AAV/ HIMARS antenna on the HMMWV Right: At USMC Above: (Video) Camp Pendleton Testing for rough rod cycling

Hi-Q Military Antennas Hi-Q-6/2-30 ALE AAV-LAV-HIMARS Antenna Below and Right (Video): The NEW Hi-Q antenna fold over with four positions (Featuring SPECIAL GUEST) Above: AAV Antenna motor assembly

Hi-Q Military Antennas Left: Hi-Q-6/2-30 ALE AAV-LAV-HIMARS Antenna The ALE cartridge components. Above: The ALE cartridge electronics Right: FoldOver on the HMMWV

Hi-Q Military Antennas Hi-Q-6/2-30 ALE AAV-LAV-HIMARS Antenna. VERTICAL TESTING

Hi-Q Military Antennas Hi-Q-6/2-30 ALE AAV-LAV-HIMARS Antenna. VERTICAL TESTING CONTINUED

Hi-Q Military Antennas Hi-Q-6/2-30 ALE AAV-LAV-HIMARS Antenna. TILTED TESTING Hi-Q-6/2-30 ALE AAV-LAV-HIMARS Antenna Chart

Hi-Q Military Antennas Currently Testing: Hi-Q ManPack ALE Antenna

Hi-Q Military Antennas NVIS DIPOLES Right: Hi-Q NVIS antenna for the Indian Railroad. Left: Hi-Q NVIS signal on the Anritsu analyzer, Camp Pendleton. Above: The original "Tune-a-dipole" now with NVIS designation

Hi-Q Military Antennas Military Antennas Misc. NVIS/ Combi redi for NAVAIR Hi-Q NVIS/ combi antenna on it's way to NAVAIR .

29 Palms USMC base, ready to deploy to Iraq. The Hi-Q-6/2-30 ALE, NVIS/Combi antenna under test at USMC Camp Pendleton.

Hi-Q Military Antennas NASA The Hi-Q-HF Radar Antenna for NASA. Two sets of antennas were scheduled for launch, one of the antennas was designed for a spacecraft to land on an asteroid, while the other will circumnavigate the earth while relaying data from the spacecraft.

Hi-Q Military Antennas CONTACT  Contact: Charles M. Gyenes  21085 Cielo Vista Way Wildomar CA, 92595  Phone: 951-674-4862  Email: sales@hi-q-militaryantennas.com Hi-Q HF antennas for the US Embassy in Baghdad Iraq