QHA Antenna Quadrifilar Helix Antenna QHA Antennas for GPS Jammer QHA Antenna for Weather Station Satellite QHA Telemetry Antenna

QHA Antenna


QHA Antenna Quadrifilar Helix Antenna


Antenna Experts QHA Antenna or quadrifilar helix antenna are rugged all weather model, enclosed in a ABS radome, uses high class copper alloy and does not require any field tuning or adjustments. The compact size of omni-directional quadrifilar helix antenna allows easy handling, shipping and highly suitable for receiving, transmitting, scanning, monitoring, surveillance and jamming applications. Antenna Experts QHA line of quadrifilar helix antennas are marine variant antennas and RF Transmission assembly is completely sealed and weather proofed to protect in harsh environments such as salt water, extreme humidity, wind, sand, snow and ice.

Antenna Experts QHA Antenna (quadrifilar helix antenna) circular polarized omni antenna comprises two bifilar helical loops oriented in mutual orthogonal relationship on a common axis. The terminals of each loop are fed in anti-phase and the currents in the two loops are in phase quadrature. The antenna is also highly suitable for Ground to Air communication/jamming application due to its wide elevation beamwidth with omni-directional properties. Antenna termination fitted just below the NATO mounting flange for complete weather protection. Other type of mounting hardware / configuration can be supplied on request.

Antenna Experts QHA Series RHCP omni or LHCP omni antenna are high suitable as base station antenna for Ground To Air communication application without having the requirement of multiple antennas. All junctions of quadrifilar helix antenna( QHA antennas ) are fully welded to prevent RF inter-modulation and antenna is completely protected within a high-tech ruggedized fiber glass or ABS radome to ensure survivability in the worst environments.

These quadrifilar helix antenna manufactured by Antenna Experts are low-profile antennas use Circular Polarization Antenna Technology - which delivers better penetration through obstruction and interference to minimize the effects of multipath interference. Thease commercial grade quadrifilar helix antenna provides superior performance as compare to significantly larger and more expensive products.

Antenna Experts QHA Series quadifilar helix antenna available in both circular polarization sense LHCP or RHCP with multiple choice of mounting hardware be it for mast mounting for base station applicable or be it for civilian vehicular mounting application or be it for NATO 4 holes military vehicular mounting application or be it for man-pack application. Other type of mounting hardware / configuration can be supplied on request.

Antenna Experts QHA Series Quadrifilar Helix Antenna are highly suitable for weather satellite communication, telemetry application, Earth Observation Missions, Space Science Missions, Global Navigation Satellite System GLONASS , L band GPS application including GPS L1, GPS L2 & GPS L5 band without having the requirement of multiple antennas. RHCP omni or LHCP omni antenna termination fitted at bottom of mounting flange for complete weather protection.

The RHCP omni quarifilar helix antenna or LHCP omni quadrifilar helix antenna are consisting of two pairs vertical loop radiating elements at right angles to each other, twisted into helix turns vertically and enclosed in ABS radome. The special "Teflon Dielectric Transmission Line" technique is used to handle high power handling capacity allowing smooth VSWR and good gain over the specified frequency band.

The UV resistant ABS enclosure has excellent transparency for RF signals and enough strength to withstand specified wind loads of these quadrifilar helix antenna. The stainless steel mounting hardware is supplied with the quadrifilar helix antenna. Cylindrical shell/enclosure is used for low wind loading and for minimal effect of ice formation on the quadrifilar helix antenna operation as well as providing an aesthetically pleasing appearance.

Antenna Experts QHA series of circular polarized quadrifilar helix antenna consist of high quality copper radiating elements fed anti-phase and the currents in the two loops are in phase quadrature and enclosed in fiber glass tube. The QHA series quadrifilar helix antenna termination is enclosed at bottom of the antenna for complete weather protection. QHA series quadrifilar helix antenna is strong enough to withstand an ice storm, and will also do well in a shoreline environmental conditions. The marine grade type 316 stainless steel mounting hardware is supplied with the RHCP QHA or LHCP QHA antenna.

Antenna Experts QHA-1117 broadband hemi omni-directional LHCP hemi omni quadrifilar helix antenna or RHCP hemi omni quadrifilar helix antenna is rugged all weather model, enclosed in a ABS radome, uses high class copper alloy and does not require any field tuning or adjustments. The compact size of LHCP or RHCP omni-directional quadrifilar helix antenna allows easy handling, shipping and highly suitable for receiving, transmitting, scanning, monitoring, surveillance and jamming applications for GPS L1, GPS L2, GPS L3, GPS L4, GPS L5, GPS L6, IRIDIUM, GLONASS, and INMARSAT bands without having the requirement of multiple antennas.

Antenna Experts QHA-450 LHCP omni or RHCP quadrifilar helix omni antenna is consisting of two (pair) vertical loop radiating elements at right angles to each other, twisted into a helix turns vertically and enclosed in ABS radome. The special “Teflon Dielectric Transmission Line” technique is used to handle high power handling capacity allowing smooth VSWR and typical 2dBi. gain over the entire specified frequency band.

The UV resistant ABS enclosure has excellent transparency for RF signals and enough strength to withstand specified wind loads. The stainless steel mounting hardware is supplied with the quadrifilar helix antenna. Cylindrical shell/enclosure is used for low wind loading and for minimal effect of ice formation on the antenna operation as well as providing an aesthetically pleasing appearance.

To know more about QHA antennas products datasheets and installation manualsin pdf format, please refer to "Quadrifilar Helix Antenna" section of our website. You can also request more technical information like VSWR curve and radiation patterns.


Antennas
HF VHF UHF Military Antenna
UAV Ground Control Station Antenna
High Gain TETRA Antenna
Manpack Jammer Antenna
FTS Antenna
ILS Antenna
Dual Polarized LP Antenna
RCIED Jammer Antenna
Log Periodic Dipole Antenna
Fiber Glass Collinear Antenna
Quadrifilar Helix Antenna
Grid Parabolic Antenna
High Gain Helical Antenna
Tactical Radio Relay Antenna
High Gain Aviation Band Antenna
Wide Band Discone Antenna
Vehicular Mount Antenna
Coaxial Dipole Antenna
Military Log Periodic Antenna
High Gain DME Antenna
UAV Anti Drone Antenna
Military Discone Antenna
SATCOM Antenna
Naval Shipboard Antenna
ADS-B Antenna
 
Long Range Drone Ground Station Antenna
VHF UHF ATC Antenna
High Gain Marine Antenna
Cavity Backed Spiral Antenna
High Gain Horn Antenna
Signal Intelligence Antenna
Surveillance Antenna
Electronic Warfare Antenna
Ground To Air Antenna
Military Tactical Antenna
FM Broadcast Antenna
Stacked Dipole Array
HF Band Dipole Antenna
Multi Band Antenna
Glide Path/Slope Antenna
HF Vertical Conical Antenna
High Gain Yagi Antenna
Dual Stacked Yagi Antenna
Quad Stacked Yagi Antenna
Circular Polarized Yagi Antenna
Dual Stacked Circular Yagi Antenna
Quad Stacked Circular Yagi Antenna
Side Mount Dipole
Ground Plane Antenna
VHF Marine AIS Antenna
Masts & Accessories
RF Coaxial Cables
RF Connectors
Aluminum Tubular Masts
Pneumatic Telescopic Masts
Tiltable Tubular Masts
Tech Support
Online Support
Technical R&D
Customized Products
About Us
Company Profile
Our Vision
Policies
Quality Policy
Environmental Policy
EH&S Policy
Privacy Policy
RoHS Compliance
Warranty Policy
Copyrights & Trademarks
Knowledgebase
Antenna Glossary
Tech Library
Antenna FAQs
Antenna Formulae