10.1 Introduction
For the most part, conventionally designed directional antennas have considered operation only at the carrier frequency with little regard for bandwidth. More recently, however, the new modulation schemes raise questions concerning the actual bandwidth of a conventionally designed AM directional antenna, so it is useful to have a capability that provides some insight into that subject.
This chapter extends the application of NEC-2 to include the total system—antenna-matching networks, phasing networks, and other parts of the system including the transmission lines. The resulting analysis views the bandwidth of the total ...
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