Beam selection aims to select beams with large power and little inter-user interference (IUI). In wireless communication scenarios, the levels of IUI are usually different, but, most existing beam methods apply same criteria for all users, which is detrimental maintain an attractive trade-off between computational complexity system performance. Considering discrepancy comprehensively, this pape...

We explore, both experimentally and theoretically, the existence in the millimeter-wave range of the phenomenon of extraordinary light transmission through arrays of subwavelength holes. We have measured the transmission spectra of several samples made on aluminum wafers by use of an AB Millimetre quasi-optical vector network analyzer in the wavelength range 4.2-6.5 mm. Clear signals of the exi...

A high-speed low-power flash analog-to-digital converter is designed and optimized in a 0.13μm CMOS technology. The ADC consumes 65mW with a supply voltage of 1.2V at 1.2G samples per second. Static DNL and INL are 0.1 LSB and 0.2LSB respectively. The figure of merit shows 1.3pJ per conversion step. The simulation result of the full flash ADC shows improvement in nonlinearity and power dissipat...

Non-linear models for microwave and millimetre wave devices are commonly based on DC and S-parameter measurements, due to the absence of vectorial large-signal measurements in the past. At present, accurate prototype measurement systems are being developed, which implies that new non-linear modelling techniques can be explored. We will show experimental results of a method that allows the direc...

A single-layer waveguide slot array antenna of low cost and high performance for a millimetre-wave wireless communication system at 38 GHz frequency band is presented. The waveguide slots and diaphragms are located together on the cover plate of the antenna, which makes the antenna cost effective and highly efficient. Measurements show a cross-polarisation level below 26 dB and an efficiency le...

-In this paper the origins of crosstalk in DWDM millimetre hybrid fibre radio networks are discussed. A means by which polarisation interleaving might be implemented with a view to reducing the impact of crosstalk is explained analytically. It is concluded that with standard fibre and continuous wave transmission polarisation interleaving provides little benefit if used over distances greater t...