HARDWARE / PRODUCTAdded 13 Jul 2026

QHA Deployable Antenna

Helical Communication Technologies (HCT)
QHA Deployable Antenna

Deployable Quadrifilar Helical Antenna for LEO small satellites, stowable in 1U-12U modules, covering 350 MHz to 3 GHz with patent-pending deployment mechanism.

Typed specifications3 values

Discloses 2 of 10 fields engineers filter by in this category (category median 3).

Frequency range
350 MHz
product page
Antenna type
helix (quadrifilar)
product page
Flight heritage
Since December 2018, multiple missions
product page

Each value is typed with its unit and measurement condition and cites the datasheet page it was taken from. Nothing is guessed: a field that is absent here has not been published by the manufacturer. machine-extracted ✓ checked by NewSpace Market ✓ manufacturer confirmed by the manufacturer.

As published by the supplier8 lines, in the manufacturer's own wording
Antenna type
Quadrifilar Helical Antenna (QHA), deployable
Frequency range
350 MHz - 3 GHz
Polarization
Circular
Standard gain
~3 dBic (near-hemispheric)
High-gain variant
Up to 12 dBi (deep space applications)
Stowage
1U to 12U CubeSat modules
Flight heritage
Since December 2018, multiple missions
Patent status
US patent (2017) for deployable design

About

The HCT QHA (Quadrifilar Helical Antenna) is a deployable circularly polarized antenna designed for LEO small satellites, offering better usable Earth footprints than simple monopole or patch antennas. HCT holds a patent for the deployable QHA design, flight-proven since December 2018 with multiple missions added to its heritage since. The antenna can be tailored for small size with lower coverage or larger size for greater coverage, and stowed within 1U to 12U CubeSat modules. HCT develops QHAs across 350 MHz to 3 GHz, with standard gain just over 3 dBic for near-hemispheric patterns, ISO-Flux patterns for maximum slant range, or high-gain variants up to 12 dBi for lunar and deep space applications.

Documentation

No public datasheet yet — request the datasheet / ICD from the supplier.

Source: www.helicomtech.com ↗

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