[46] The expression for the power P rad and resistance R rad of radiation of the source with the given current at the antenna clamps
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[47] The estimate of the input impedance
Z of the emitter on the basis of the
results of equations (6) solution relative to the reflection coefficient
Rn1 shows that the ratio
Z Im/Z Re not at the resonance is
high
O(1/Ga3).
At the resonance frequency, this ratio having the value
O(np) decreases by almost 4 orders of magnitude if
Gnp
0.01.
[48] The estimate of the power P rad and conductivity Y rad of the radiation of a spheroidal slot antenna surrounded by a two-layer plasma coating
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[49] The value of the complex entrance conductivity estimated on the basis of
the
Hj component of the field at the antenna gap under very thin first
plasma layer ( F0 or
a03
1 )
shows that for the low-frequency
branch the ratio
is small by the
magnitude at the first layer thickness
providing the presence
of a considerable resonance. The ratio
for the high-frequency branch is
also small at not too thick second plasma layer.
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