Design of Antennas for Handheld DVB-H ... - Lunds tekniska högskola

List of contents
1 INTRODUCTION ..........................................................................................1
1.1 Thesis overview.......................................................................................... 1
1.2 Purpose....................................................................................................... 2
2 BACKGROUND............................................................................................3
2.1 Digital Video Broadcasting....................................................................... 3
2.1.1 DVB .................................................................................................... 3
2.1.2 OFDM ................................................................................................. 4
2.1.3 Reed-Solomon Codes.......................................................................... 7
2.1.4 DVB-T................................................................................................. 7
2.1.5 DVB-H ................................................................................................ 9
2.1.5.1 Standardization of DVB-H............................................................ 10
2.1.5.2 Time slicing................................................................................... 11
2.1.5.3 Multi Protocol Encapsulation – Forward Error Correction........... 12
2.1.5.4 MPE-FEC frame............................................................................ 13
2.1.5.5 4K mode ........................................................................................ 14
2.1.5.6 Transmission Parameter Signalling - TPS .................................... 15
2.2 Competing standards .............................................................................. 17
2.2.1 Satellite-Digital Mobile Broadcast.................................................... 17
2.2.2 Mobile Broadcast/Multicast Service ................................................. 17
2.3 Antenna theory ........................................................................................ 19
2.3.1 Efficiency, directivity and gain......................................................... 19
2.3.2 Reflection from a mismatched antenna ............................................. 19
2.3.3 Resonance Circuit ............................................................................. 21
2.3.4 Quality Factor.................................................................................... 22
2.3.5 Bandwidth......................................................................................... 23
2.3.5.1 Impedance matching ..................................................................... 23
2.3.6 Bandwidth enhancement ................................................................... 24
3 POSSIBLE SOLUTIONS..........................................................................26
3.1 Dipole and Monopole antenna ............................................................... 26
3.2 Yagi-Uda .................................................................................................. 26
3.3 Loop.......................................................................................................... 27
3.4 Microstrip antenna.................................................................................. 27
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