# ISISPACE S-Band Patch Antenna
*component . products*

ISISPACE's S-band patch antenna is a passive CubeSat antenna for the 2200-2290 MHz commercial S-band range.

## Specifications
- **manufacturer**: isispace
- **deployment context**: orbital
- **entity type**: component
- **last verified date**: 2026-05-28
- **verified by**: operator
- **claim status**: unclaimed
- **subtype**: comms-ttc
- **provider**: isispace
- **attributes**: {"kind":"component","product_status":null,"manufacturer":"isispace","description":"ISISPACE's S-band patch antenna is a passive CubeSat antenna for the 2200-2290 MHz commercial S-band range.","sensor":null,"bus":null,"ground_segment":null,"launcher":null,"analysis_service":null,"deployment_context":"orbital"}

## Editorial
The ISISPACE S-Band Patch Antenna is a passive CubeSat antenna covering the 2200-2290 MHz commercial S-band downlink allocation for telemetry or payload data transmission.[^s-band-patch-page] The design uses a Rogers PCB substrate and meets IPC-A-610 Class 3 standards for PCB and assembly quality, as stated by ISISPACE.[^s-band-patch-page][^s-band-patch-datasheet-v1-4] Flight heritage was established in 2021 per the ISISPACE product page.[^s-band-patch-page]

The antenna provides a boresight gain of 6.5 dBic at center frequency, a half-power beam width of 100 degrees, return loss above 10 dB across the operating band, and an axial ratio below 3 dB within +/-50 degrees of boresight.[^s-band-patch-datasheet-v1-4] Polarisation is right-hand circular (RHCP) and RF power handling is rated at 2 W.[^s-band-patch-datasheet-v1-4]

The antenna has a circular footprint of 80 mm diameter and a profile of 5.0 mm without the connector, rising to 9.5 mm with the straight SMA connector fitted.[^s-band-patch-datasheet-v1-4] Mass is below 60 g.[^s-band-patch-page] Operating temperature range is -20 to +50 deg C.[^s-band-patch-datasheet-v1-4] ISISPACE states compatibility with its S-band transmitters and with other manufacturers' systems.[^s-band-patch-page]

## Sources
- [s-band-patch-page] | ISISPACE S-Band Patch Antenna product page | https://www.isispace.nl/product/s-band-patch-antenna/ | tier=operator-marketing | accessed=2026-05-28
- [s-band-patch-datasheet-v1-4] | ISISPACE S-band Patch Antenna datasheet v1.4 | https://www.isispace.nl/wp-content/uploads/2020/04/ISIS.SPPA_.DS_.00001_v1.4-Datasheet.pdf | tier=operator-datasheet | accessed=2026-05-28

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Source: https://eo-atlas.org/products/component/isispace-s-band-patch-antenna
Maintainer: SpectraWorks B.V. (CC-BY 4.0)