Quadrifilar Helix Antenna

Quadrifilar Helix Antenna for Weather Satellite Atmospheric Research purpose provides horizon to horizon coverage. QHA Series broadband omni-directional RHCP or LHCP quadrifilar helix antennas 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 RHCP omni or LHCP omni-directional quadrifilar helix antenna allows easy handling, shipping and highly suitable for receiving, transmitting, scanning, monitoring, surveillance and jamming applications.

The QHA 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.