S-Band Transmitter

The dual band antenna consists of a rectangular patch which is fed by the coaxial probe feeding technique . The ground plane is loaded with two rectangular strip slots and one elliptical slot to drive the antenna into dual mode and to enhance its bandwidth.

The S-Band High Data Rate Transmitter is a CubeSat compatible Transmitter designed to meet the needs of high data-rate downlinks of up to 4.3 Mbps (usable information bit-rate at CCSDS transfer frame level). The transmitter can be used for both TT&C or PDT downlinks.

A single S-band boom antenna on each satellite (deployed after launch by a pyrotechnic device) enables the satellite to communicate with Earth . There are small backup antennas on the top of each satellite to provide backup communication as required.

This antenna system provides omnidirectional coverage of telemetry, tracking and command (TT&C) communication links for a student satellite . The compact, lightweight antenna is designed for dual circular polarization in S-Band (2.0 to 2.3 GHz), covering both the transmit and receive TT&C frequency bands.