.
Vertical
Horizontal
Circular
Spiral
3.3 times
10.89 times
9.9 times
6.6 times
Image
Top loading
Bay
Quarterwave
VHF, UHF
VLF, LF
SH, EHF
MF, HF
End fire array
Critical phased array
Broadband array
Wideband array
Antenna
Loudspeaker
Microphone
Transducer
Rhombic antenna
Folded dipole
End-fire array
Yagi-Uda antenna
2.15 dB
1.76 dB
1 dB
0dB
Minor lobes
Null
Antenna patterns
Major lobes
1.64 dB
2.15 dB
1.76 dB
1.55 dB
Phase angle
Antenna gain
Beamwidth
Bandwidth
Void antenna
Dummy antenna
Hertzian antenna
Isotropic antenna
Space diversity
Frequency diversity
Polarization diversity
Wavelength diversity
Bandwidth
Enthalpy
Entropy
Quantum
10,000 times
1000 times
100 times
1 million times