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

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Nov 14, 2022 182 likes •425 views

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

SLIDE 1

Efficient HF Submarine Antennas

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

SLIDE 2

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

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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

SLIDE 4

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

SLIDE 5

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

SLIDE 6

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

SLIDE 7

US Submarine Antennas HI-Q-6-2/30 HI-Q-5-2/30 HI-Q-4-2/30 HMS GOTLAND Antenna

Hi-Q Military Antennas

Submarine Antennas FAMILY OF SUBMARINE ANTENNAS

SLIDE 8

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

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

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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

Submarine Antennas

SLIDE 11

Hi-Q Military Antennas

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

SLIDE 12

Hi-Q Military Antennas

Hi-Q-6/2-30 ALE AAV-LAV-HIMARS Antenna.

c

Above: AAV/ HIMARS antenna

n the HMMWV

Right: At USMC Camp Pendleton Above: (Video) Testing for rough rod cycling

SLIDE 13

Above: AAV Antenna motor assembly

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)

SLIDE 14

Hi-Q Military Antennas

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

SLIDE 15

VERTICAL TESTING

Hi-Q Military Antennas

Hi-Q-6/2-30 ALE AAV-LAV-HIMARS Antenna.

SLIDE 16

Hi-Q Military Antennas

Hi-Q-6/2-30 ALE AAV-LAV-HIMARS Antenna.

VERTICAL TESTING CONTINUED

SLIDE 17

Hi-Q Military Antennas

Hi-Q-6/2-30 ALE AAV-LAV-HIMARS Antenna. Hi-Q-6/2-30 ALE AAV-LAV-HIMARS Antenna Chart

TILTED TESTING

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Hi-Q Military Antennas

Currently Testing: Hi-Q ManPack ALE Antenna

SLIDE 19

Above: The original "Tune-a-dipole" now with NVIS designation

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.

SLIDE 20

Hi-Q NVIS/ combi antenna on it's way to NAVAIR.

Hi-Q Military Antennas

Military Antennas Misc.

NVIS/ Combi redi for NAVAIR

SLIDE 21

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

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Hi-Q Military Antennas

NASA

The Hi-Q-HF Radar Antenna for NASA. Two sets of antennas were scheduled for launch,

ne 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.

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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