Abstract
The performance and potential of a W-band radio-over-fiber link is analyzed, including a characterization of the wireless channel. The presented setup focuses on minimizing complexity in the radio frequency domain, using a passive radio frequency transmitter and a Schottky diode based envelope detector. Performance is experimentally validated with carriers at 75-87GHz over wireless distances of 30-70m. Finally the necessity for and impact of bend insensitive fiber for on-site installation are discussed and experimentally investigated.
Highlights
The immense growth in the usage of mobile and wireless data – driven by the use of bandwidth intensive applications on mobile consumer devices – has lead to an increasing demand for highspeed multi-gigabit wireless connections
For the characterization of a short distance indoor W-band wireless link a setup as depicted in Fig. 2 is used, in which a vector signal generator (VSG) in combination with a frequency sextupler generates the signal to be transmitted, while at the receiver the signal is down-converted to intermediate frequency (IF) using a harmonic mixer driven by a 4–6 GHz local oscillator (LO)
The performance of the reduced radio frequency (RF) complexity W-band photonic-wireless link is analyzed for wireless links of 30–70 m and utilizing carrier frequencies between 75–87 GHz, while the optical transmission link consists of 10 km single-mode fiber (SMF) in all cases
Summary
The immense growth in the usage of mobile and wireless data – driven by the use of bandwidth intensive applications on mobile consumer devices – has lead to an increasing demand for highspeed multi-gigabit wireless connections. Complexity of the setup: Gbit/s class W-band wireless transmissions reaching long distances have been performed with high complexity in both the optical and radio frequency (RF) domains; setups with reduced complexity employing envelope detection for (RF) downconversion were suggested [10, 16], but only recently [11, 17, 18] reached distances beyond 10 m wireless transmission.
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