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== WARP Radio RF ==
[[Image(HardwareUsersGuides/RadioBoard_v1.4/Images:Radio_Board_RF.jpg)]]

The RF section of the Radio Board consists of a dual-band direct-conversion RF transceiver and an RF front-end connecting the transceiver to the antenna.

=== RF Transceiver ===
The board uses Maxim's [http://www.maxim-ic.com/quick_view2.cfm/qv_pk/4532 MAX2829] dual-band transceiver. Some key features of the transceiver are:
 * Dual-band (2400-2500MHz, 4900-5875MHz)
 * Up to 40MHz bandwidth
 * Analog I/Q Tx and Rx interfaces
 * 60dB RSSI range
 * 30dB Tx power control range
 * 93dB Rx gain control range
 * MIMO capable

The I/Q interfaces of the MAX2829 are connected directly to the Radio Board's ADC and DAC. The transceiver's control interfaces are connected to the daughtercard headers, enabling direct control from the FPGA.

=== RF Power Amplifier ===
The RF transmit path includes a Sharp IRM046U7 dual-band RF power amplifier. The board is designed to provide approximately 18dBm output power when driven at full gain. The PA is controlled by the host FPGA via daughtercard connections. The PA datasheet is available [attachment:wiki:HardwareUsersGuides/RadioBoard_v1.4/Images:IRM046U7.pdf?format=raw here].

=== Antenna Ports ===
The are two 50Ω female SMA antenna connectors; only one is connected to the transceiver at a given time. See [../Usage/AntennaConnectors AntennaConnectors] for more details.