120 GHz silicon monolithic Schottky diode mixers Andreas Müller' and Erich Kasper2 Abstract -- Single balanced direct mixers for a millimeterwave radar front end have been realized using a standard Silicon technology with a lithography resolution of 1 p.m combined with molecular beam epitaxy. The integration compatible technology provides low-barrier Schottky diodes with aluminum/nickelsilicide co

Ultra-wide band over fibre in millimetre waves using up conversion technique Béatrice Cabon' and Giang Nguyen' Abstract -- We discuss here perspectives of implementing over fibre UWB (Ultra Wide Band) signals in 60 GHz-band and discuss benefits over classical wireless UWB systems. An example of up-conversion technique for UWB transmission over fibre in this band is presented. It uses external modu

Slowlight in semi-conductor amplifier. Application to programmable time delays for the control of microwave signals S. Tonda-Goldstein', P. Berger', D. Dolfi', J. Chazelas2 and J.P. Huignard' Abstract -- The control of time delays of large bandwidth microwave signals for radar applications is demonstrated through slowlight in SOA. An original optical architecture is implemented on the basis of a m

Reduction of photo-induced excess carriers in optically controlled microwave circuits on HR-Si C. Roda Neve', D. Lederer2 and J.-P. Raskin' Abstract -- he reduction of Photo-Induced excess carriers on high resistivity substrate with a trap-rich passivation layer is presented. A coplanar waveguide photo-induced Radio Frequency switch on High Resistivity Silicon substrate is used as device under tes

Optical down-conversion and digital processing of microwave signals Yifei Li', Peter Herczfeld1, Arye Rosen', Maja Bystrom2 and William Jemison3 Abstract -- A combined optical and digital microwave signal processing scheme is considered for a radar receiver application. Frequency down-conversion is an essential element of microwave signal processing. Classical electronic down-conversion using hete

Microwave photonic signal processing R. A. Minasian Abstract -- Photonic signal processing can realize multi-GHz sampling frequencies, overcoming inherent electronic limitations, for processing high bandwidth signals. In-fibre signal processors are compatible with fibre-optic microwave systems and can provide RF pre-processing with EMI immunity. Structures are presented, which address the challeng

Magnitude modulation of microwave signals by ultrafast optical control of membrane LT-GaAs photoswitching devices C. Tripon-Canseliet', S. Faci', G. Alquié', K. Blary2,S. Formont3 and J. Chazelas3 Abstract -- Microwave photonics contributes through ultrafast devices to the processing of high data rates. In this area, microwave photoconductive switches (MPCSs) in integrated technology have proved t

Generation of photons and the processing time Tibor Berceli Abstract -- The generation of photons has been discussed in many papers for a long time, however, there are still several interesting and important problems. This paper presents a simple new approach providing results on some properties of photon generation like its duration, energy density, etc. The main goal of the investigation is to e

Generation of microwave signals by optical techniques Asher Madjar1, Tibor Berceli2 and Konstantin Vodopyanov3 Abstract -- This paper is a review of several emerging approaches to microwave generation by optical techniques. These approaches are aimed at types of microwave sources and frequencies, which are not well suited to "conventional" methods (transistor oscillators, TED, IMPATT, etc). These

Editorial The aim of this Special Issue is to provide the readers with a collection of papers in the interdisciplinary field of microwave photonics. Photonics brings new functions to microwave systems such as long delay lines, fast spectrum analysis, frequency conversion, probing and control of microwave devices, low phase noise oscillators and ultra-fast analogue to digital converters. Conversely