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A 40 GHz 130nm CMOS power amplifier unit-cell is designed and simulated for use in a downlink transmitter of a millimeter-wave radio-over-fiber system. The system will be used as a complementary solution to Fiber-to-the-Home where geographical limitations and cost considerations are critical. The power amplifier unit-cell has a single-stage cascode structure for stability and input-output isolation...
This paper presents a testbed design by using Software Defined Radio (SDR) and Radio-over-fiber (RoF) platforms for the next generation wireless access network. The proposed testbed supports concurrent multiservice transmissions, in which a heterogeneous network is emulated. The SDR is based on NI USRP RIOs, which generated both IEEE 802.11 and long term evolution (LTE) signals, and integrated with...
This paper presents the design methodology and implementation of a cascode low-noise amplifier (LNA) for 40GHz radio-over-fiber (RoF) system. The proposed LNA is implemented in 0.13µm CMOS technology. The single-stage LNA achieves a maximum measured small-signal gain of 8.87dB at 41.25GHz while consuming 18.3mW from a 2.0V supply. Measurement results also display a good input and output return losses,...
A 40 GHz power amplifier (PA) driver for the remote antenna unit (RAU) transceiver of a mm-wave radio-over-fiber (RoF) system is presented in this paper. Mm-wave RoF is proposed as a complementary technology to fiber-to-the-home to minimize costs and to increase bandwidth. In order for RoF to be feasible, the cost of the RAU must be minimized through low-cost technology such as CMOS. The PA driver...
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