A lossless half-wave dipole in free space is center-fed with a sinusoidal current. Which statement about its far-field radiation pattern is correct?

It has maximum radiation broadside to the dipole and nulls along the dipole axis.

For a rectangular microstrip patch antenna operating in the dominant TM10 mode, the patch length L is approximately chosen as

lambda_g/2 in the effective dielectric medium

A Hertzian dipole of length l carries current I0. In the far field, which quantity varies inversely with distance r from the antenna?

Electric and magnetic field amplitudes

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GATE Electronics and Communication Engineering Previous Year Question Papers

Includes analog and digital electronics, communication systems, signal processing, and VLSI design, for careers in telecommunications and electronics.

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Formula of the day

Super heterodyne receivers · 133 formulae in the cheatsheet

Trap of the day

A tall resonant peak (low ζ) means a lightly-damped, oscillatory system — high peak is not “good response”.

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