Microwaves, a.a. 2019/20 Prof. Luca Perregrini Microwave systems, pag. 1

MICROWAVES

Università di Pavia, Facoltà di Ingegnerialuca.perregrini@unipv.it

http://microwave.unipv.it/perregrini/

Prof. Luca Perregrini

Master Degree (LM) in Electronic Engineering

MICROWAVE SYSTEMS

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SUMMARY

Chapter 14

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INTRODUCTIONTo exchange information by means of electrical signals we need to associatethe information to the signal itself.This process is called modulation and the signals so generated are calledmodulated signals.Modulation is also used to move the spectrum of a signal to a frequencysufficiently high to allow the free space propagation (wireless transmission).In this case the bandwidth of the signal is much smaller than its centerfrequency and the signal is referred to as a RF signal.All those system dealing with RF signals are called RF or microwavesystems.

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INTRODUCTIONMicrowave systems include• radio/television broadcast (both terrestrial and satellite)• cellular phone networks• networking systems• wireless local area networks (WLANs)• global positioning system (GPS) service• radio frequency identification (RFID) systems• RADAR (localization, defense, meteorological, underground, …)• Remote sensing (avionic and satellite)• industrial applications of microwaves• biological applications for diagnosis and therapy• …

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MICROWAVE SYSTEMS: EXAMPLES

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MICROWAVE SYSTEMS: EXAMPLES

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MICROWAVE SYSTEMS: EXAMPLES

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MICROWAVE SYSTEMS: EXAMPLES

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MICROWAVE SYSTEMS: EXAMPLES

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MICROWAVE SYSTEMS: EXAMPLES

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MICROWAVE SYSTEMS: EXAMPLES

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MICROWAVE SYSTEMS: EXAMPLES

Remote sensing

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MICROWAVE SYSTEMS: EXAMPLES

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MICROWAVE SYSTEMS: EXAMPLES

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MICROWAVE SYSTEMS: EXAMPLES

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MICROWAVE SYSTEMS: EXAMPLES

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MICROWAVE SYSTEMS: EXAMPLES

Microwave hyperthermia system

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MICROWAVE SYSTEMS: EXAMPLES

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MICROWAVE SYSTEMS: WIRELESS FREQUENCIES

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MICROWAVE SYSTEMS: SPECTRUM ALLOCATION

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MICROWAVE SYSTEMS: ARCHITECTURE

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MICROWAVE SYSTEMS: ARCHITECTURE

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MICROWAVE SYSTEMS: ARCHITECTURE

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MICROWAVE SYSTEMS: ARCHITECTURE

60 GHz 16 Gb/s 16QAM low-power direct-conversion transceiver

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MICROWAVE SYSTEMS: ARCHITECTURE