Optimization of Multi-standard Transmitter Architecture Using Single-Double Conversion Technique Used for Rescue Operations

摘要

A new architecture of multi-standard transmitter that combines single and double frequency conversion is presented. The transmitter is able to generate waveforms of different cellular standards (GSM, UMTS, Wimax), LAN standards (Bluetooth, Zigbee, IEEE802.11 b/g) and Radio navigation standards (GPS, Galileo) as well. Depending on the selected standard and frequency, the transmitter routes the intermediate frequency signal, into direct or double conversion path. Optimization design techniques are introduced to manage multiple standards and efficiently enable them while reducing cost, size and weight of the resulting transmitter. Such a transmitter is aimed to be used as a backup solution for a broken network to reestablish and insure communication links for rescue operations.