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1. How do you find the radiation fields due to an antenna of arbitrary length and arbitrary current distribution?
2. Discuss the evolution of the half-wave dipole from an open-circuited transmission line.
3. Justify the approximations involved in evaluating the integrals in the determination of the radiation fields due to the half-wave dipole.
4. What are the values of the radiation resistance and the directivity for a half-wave dipole?
5. What is an antenna array?
6. Justify the approximations involved in the determination of the resultant field of an array of two antennas.
Resistivity measurements on the leaves of corn plants are a good way to assess stress and overall health. The leaf of a corn plant has a resistance of 1.9M? measured among two electrodes placed 20 cm apart along the leaf. The leaf has a width of 2.4c..
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