Low-cost Smart Antennas

Index

• a
• Antenna array  9–17
  • axial ratio  8
  • beamwidth  14
  • directivity  6, 14
  • far‐field  5
  • grating lobe  15
  • impedance  2
  • isolation  200
  • mutual coupling  12–13
  • polarisation  8
  • radiation pattern  4
  • reflection coefficient  3, 12, 202
  • return loss  4
  • scan blindness  16
  • VSWR  4
• Array‐fed reflector  246

• b
• Beamforming
  • adaptive  29, 36, 45
  • blind  40
  • capon  38
  • constant modulus  42
  • fixed  29, 30
  • hybrid  43
  • least Squares  32
  • uniform linear arrays  28
• Blass matrix  259
• Butler matrix  253

• c
• Case study  86, 153, 189, 218
• Circularly polarised  185
• Cross‐correlation coefficient  62

• d
• Decoupling network  209

• e
• Electronically
  • circuit mode, l  65
  • control voltages  67–70
  • dipole  83
  • folded‐monopole  63
  • link quality  72–73
  • MIMO  215
  • patch  76
  • PIN  70–71, 83, 93
  • planar  75, 93
  • steerable parasitic array (ESPAR)  22, 59–98, 215–217
  • ultra‐thin  90
  • varactor  66
• Envelope correlation coefficient (ECC)  201

• f
• Fabry–Perot resonator
  • AMC  244
  • beam‐steering  245
  • dual‐band  244
  • partially reflective surface  243
• Feed network  84, 135, 235 
• FIR filter  30–31
• Frequency selective surface (FSS)
  • beam‐switching  114, 120, 125
  • biasing  113
  • circuit model  107–109, 112–113
  • continuous beam‐steering  145
  • dual‐band  120
  • feed array  132
  • frequency‐agile  138
  • metal strip  107
  • PIN diodes  109–110, 112, 114
  • slot FSS  111
  • varactor  149

• l
• Lens  229, 257

• m
• Metamaterial  205
• Multibeam  253
• Multiple‐input multiple‐output (MIMO)
  • adaptive  215
  • antenna orientation  220
  • compact  203
  • envelope correlation coefficient  201
  • ground plane  222
  • isolation  200

• n
• Nolen matrix  260

• p
• Patch antenna  ...