CCD matched filter in spread spectrum communication

We study the feasibility of a charge coupled device (CCD) matched filter based on AlGaAs/GaAs high electron mobility transistor (HEMT) technology in a spread spectrum (SS) communication system. We show that the CCD matched filter can work in the IF stage including the carrier, and the power consumption is estimated to be approximately 40 mW in case of an 11-chip Barker code at a chip rate of 11 Mcps. This CCD matched filter is suitable for applications where the PN code is short and fixed, for example, in the IEEE 802.11 standard.