Changes between Version 4 and Version 5 of Radio Board


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Timestamp:
Dec 28, 2006, 3:38:21 AM (17 years ago)
Author:
murphpo
Comment:

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  • Radio Board

    v4 v5  
    33The WARP radio board utilizes a dual-band direct conversion radio transceiver from Maxim, the [http://maxim-ic.com/max2829 MAX2829]. This transceiver supports both the 2.4 GHz and 5 GHz ISM bands. Although it is intended for use in 802.11a/b/g/n designs, this transceiver provides a flexible analog baseband interface. This interface allows the translation of any waveform, with a bandwidth up to 40 MHz, between baseband and RF, regardless of the waveform's adherence to an 802.11 standard. Further, when driven by a common reference clock, the phase coherency of the local oscillators in multiple MAX2829 transceivers is guaranteed. This feature is critical in MIMO applications as many algorithms require carefully controlled phase relationships and accurate measurements of phase among multiple antennas.
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    5 [[Image(WARPImages:RadioBoard.png)]]
     5[[Image(WARPImages:WARP_RadioBoard_Photo_sm.jpg)]]
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    77The TAP radio board's RF chain is completed by bandpass filters, a dual-band power amplifier and a Tx/Rx switch. The amplifier in the current design is capable of transmitting OFDM waveforms at 18 dBm. Future revisions of the board will likely incorporate more powerful amplifiers which will be better suited to long-range, outdoor deployment.