S-Band CubeSat Patch Antenna
A compact, high-efficiency patch antenna engineered for S-Band downlink on 1U–3U CubeSats — designed by Tamatu's RF engineering team, moving from prototype to production.
This product is still moving through design validation — specifications below are indicative targets, not a final datasheet. Get in touch for current test data and availability.
Purpose-built for small-satellite downlink
Tamatu's communications and RF engineering work has always centred on getting a reliable signal out under real-world constraints — clubrooms, event sites, emergency deployments. The S-Band CubeSat patch antenna takes that same practical approach into orbit: a low-profile, mechanically simple antenna sized to mount flush on a CubeSat structure without eating into payload volume.
It's aimed at university, research and commercial CubeSat teams who need dependable S-Band downlink hardware without designing an antenna from scratch — with the option to work with our team directly on mission-specific tuning.
Designed around
- Low-profile patch geometry that mounts flush to a CubeSat panel
- Circular polarisation to reduce link losses from spacecraft tumbling
- Space-qualifiable materials suited to LEO thermal and radiation conditions
- Straightforward integration — standard connector and mounting footprint
| Frequency band | S-Band, ~2.2–2.4 GHz (downlink) |
| Polarisation | RHCP (LHCP variant available on request) |
| Peak gain (target) | ~6–8 dBi |
| VSWR (target) | ≤ 1.5 : 1 at band centre |
| Connector | SMA (MMCX option under evaluation) |
| Mounting | Flush-mount, 1U–3U CubeSat compatible |
| Mass (target) | < 50 g |
| Operating environment | LEO thermal & radiation, design in progress |
| Status | Prototype & test — pre-production |
Working on a CubeSat mission?
Get in touch about test data, timelines and early access to the S-Band patch antenna.
Enquire now