1. Agile Radio 1.05.25-5.85 GHz RF Module Design Goals 5 GHz Module Status • Develop modular Baseband to RF transceiver sections with extremely flexible frequency band and channel bandwidth capabilities. • Initial design will be used for experiments in the U.S. and European 5.25-5.35 GHz and 5.475-5.825 GHz UNII bands, with modules designed for other frequency bands to follow. • Support the Hyper-OFDM modulation concept, as well as other modulation formats of interest. • Incorporate hardware features useful to the research and academic communities, such as digital gain controls for RF channel sounding and characterization experiments. • Proof of concept 1.0 prototype assembled. • RF and Control circuitry tested and characterized. • Prototype has met performance expectations. • Integration with 1.0 Agile Radio Digital Module for further testing and circuit optimization is in process. • 2.0 Agile Radio 5 GHz RF Module design is in process; redesign will incorporate minor tuning changes and layout reorientation to match the version 2.0 Digital Module. • Field tests planned for Summer 2005. RX Mixer 10dB CLoss +8dBm P1dB RX LNA 19dB Gain 1.8 dB NF @ 6 GHz 5th Order 5.250-5.825 GHz Bandpass Filter 5 GHz RF Module 1.0 Prototype Unmodulated 5.5 GHz Output 802.11a Channel 52 TX Mixer 10dB CLoss +8dBm P1dB 3.4 GHz LO Power Divider 5.250-5.825 GHz TX Output 5.250-5.825 GHz RX Input TX PA 1 17dB Gain 15dBm P1dB @ 6 GHz 5th Order 5.250-5.825 GHz Bandpass Filter 20 MHz BW 3.4 GHz RX+TX LO 3 PLL 5th Order 3.4 GHz Bandpass Filter 30dB Digital Step Attenuator TX IF VGA 56dB Gain Control Range 5th Order 1.850-2.425 GHz RX IF Bandpass Filter TX LO2 programmed for 2.1 GHz IF VGA programmed for 0 dBm Output Modulator I & Q inputs terminated Module RX section programmed to receive 802.11a WLAN channel 52 Direct Conversion I & Q Demodulator 69dB Gain Control Range 5th Order 1.850-2.425 GHz TX IF Bandpass Filter 5 GHz RF Module 1.0 PCB Baseband Data Output Baseband I & Q Differential Outputs to Digital Module ADC Baseband I & Q Differential Inputs from Digital Module DAC 30 MHz Baseband Low Pass Filter BW Direct Conversion I & Q Modulator 2.150-2.425 GHz RX LO 1 PLL VCC & Control Interface to Digital Module 2.150-2.425 GHz TX LO 2 PLL 1.850-2.150 GHz RX LO 1 PLL 1.850-2.150 GHz TX LO 2 PLL 3/24/05