Transcription of 4章 線状・板状アンテナ - ieice-hbkb.org
1 4 2 4 4 2 4 [2013 1 ] 1864 1888 1901 - 4-1 4-1-1
2 4-1-2 4-1-3 4-1-4 4-2 4-3 4-4 4-5 4-1-1 4-1-2 4-1-3 IC 4-1-4 2013 1/(15) 4 2 4 F 4-2 4-3 4-4 4-5 2013 2/(15) 4 2 4 4 - 2 - 4 4-1 [2010 4 ] 4-1-1 Wire Antenna 4 1(a) Dipole Antenna 1)
3 2/2 =h Half-wavelength Dipole 4 1 4 2(a) Parallel Line (Lecher Line) Distributed Constant Circuit 2 Maxwell s Equations 1/4 A-A' 4 2(b) A-A' 2/2 =h 4 1(b) 2 Balun Stub 2) 2013 3/(15) 4 2 4 AA'(a) AA'(b) d4/l 4 2 Method of Moments MoM (Boundary Element Method BEM) FDTD Finite-difference Time-domain Method Finite Element Method FEM 2), 3)
4 4 3 2/2 =h, 4 3(a) 0 4 2 0 4 3(b) Electric Flux Line 3 4 3(c) 8 8 Pattern of Figure 8 4 3(d) Directional Pattern E E-plane H H-plane Infinitesimal Dipole Isotropic Antenna 2/1r 2013 4/(15) 4 2 4 Directivity, Directive Gain dBi dBi dBi (a) (b) (c) 3 (d) E 4 3 4 4 10)
5 /2ln(2== ah 4 4 Input h2 2013 5/(15) 4 2 4 Impedance MoM Electro Motive Force Method EMF Method 4393jZin+=4373jZin+= 4 5 Sidelobe 1 8 4 5 2) 4 6 3 2) 4 6 (Parasitic Element) Yagi-Uda Antenna (Yagi Antenna) Director Reflector Main Beam 2013 6/(15) 4 2 4 Endfire Array 4 7 3 4 7 3 2) 4-1-2 4 3(b) 4 8(a) Ground Plane (Image Theory)
6 4 8(b) Monopole Antenna 4 8 2013 7/(15) 4 2 4 1/2 1/2 Sleeve Antenna 2) 4-1-3 Loop Antenna 4 9 4 2 4 10 4 9 2) 4 10 2) 4 10(b) Infinitesimal Loop Ampere s Law 2013 8/(15) 4 2 4 Duality 4 3(c) 8 1/2 4 10 1 4 10(c)
7 1 1 2 IC 4-1-4 4 11 Folded Dipole Antenna 2/ =L 4 300 4 11 2) 4 12 F 2) 4 12 F Inverted-F Antenna 4 12(a) 2013 9/(15) 4 2 4 L Inverted-L Antenna 4 12(b) Transmission Line Antenna 4 12(c) 4 12(d) F 4 12(e) F Meander Line Antenna Spiral Antenna 2) 2013 10/(15) 4 2 4 4 - 2 - 4 4-2 [2010 4 ] Slot Antenna 4 13 Microstrip Line 4 14 Waveguide Slot Antenna 12 GHz Radial Line Slot Antenna RLSA 2)
8 4 13 2) 4 14 2) Magnetic Current Antenna 4 13 z = 0 0 Electric Current Antenna 2013 11/(15) 4 2 4 4 - 2 - 4 4-3 [2010 4 ] Traveling Wave Antenna Leaky Wave Antenna 4 15 Leaky Wave Waveguide (a) (e) Rectangular Waveguide (f) Coaxial Cable 4 15 2) 2013 12/(15) 4 2 4 Leaky Coaxial Cable 0 g m (Beam Tilt) 4 15(a) m )
9 /(sin01gm Surface Waveguide, Surface Transmission Line Dielectric Rod Antenna (Poryrod Antenna) 2) Biconical Antenna 2013 13/(15) 4 2 4 4 - 2 - 4 4-4 [2010 4 ] Self-complementary Antenna 4 16 Biconical Antenna 4 17 Bow-tie Antenna 4 18 Babinet s Theorem 60 (Mushiake s Relation) 2) Ichimatsu Moyou Antenna 2) Log-periodic Antenna Fractal Antenna 2)
10 4 16 2) 4 17 2) 4 18 2) 2013 14/(15) 4 2 4 2013 15/(15) 4 - 2 - 4 4-5 [2010 4 ] Disc Antenna 4 19 Disc Monopole Antenna 4 13 4 17 4 18 Patch Antenna
