Novel Radio Architectures for UWB, 60 GHz, and Cognitive Wireless Systems

60 GHz Radio

60 GHz-MILLIMETRE-WAVE GENERATION AND BEAM-FORMING INHYBRID-FIBRE-RADIO SYSTEMS FOR BROADBAND-WIRELESS ACCESS

We present a novel architecture for broadband mobile indoor communication systems applying hybrid-fibreradio technology. One issue is the centralized optical generation of millimetre-wave signals which can be distributed easily to several base stations via optical fibres. Key device is a self-pulsating laser designed for 60 GHz operation. It is remotely stabilized by an optical sub-harmonic 10 ...

A novel LTCC differentially Fed UWB antenna for the 60 GHz band

In this paper a novel differentially fed Ultra-Wide Band (UWB) antenna in low-temperature co-fired ceramics (LTCC) technology to be used in the 60 GHz band for integrated RF front-ends is presented. The antenna is based on the aperture stacked patch fed via H-shaped aperture to achieve more than 10 GHz operational bandwidth. The antenna is fed by a parallel-wire transmission line which enables ...

Capacity of 60 GHz Wireless Communication Systems over Fading Channels

This paper considers the channel capacity of 60GHz wireless communications systems over Rayleigh fading channels and Ricean fading channels. The SNR and therefore capacity varies according to the communication distance. The capacity is presented for line-of-sight (LOS) and non-line-of-sight (NLOS) channels given based on a 60GHz link budget model. Phase shift keying (PSK) modulation is consider...

Low Cost Variable Delay Line for Impulse Radio UWB Architectures

This paper introduces a programmable delay line circuit suitable for Impulse Radio Ultra Wideband (IR-UWB) architectures. When dealing with Impulse Radio Technologies, fine synchronisation used to be related to relative high cost devices. The low cost, low power architecture reported, has been tested into a COTS (Commercial Off The Shelf) breadboard, but is being easily implemented into Silicon...