Virtual antennas simplify IoT embedded antenna design
Antennas have always existed in a contradictory and sometimes confusing place in the wireless world. On one side, they are just simple passive transducers between the confined energy in conductors as represented by voltage and current, and the dispersed, radiating electromagnetic energy existing in a vacuum or air. On the other side, they are available in a bewildering range of physical embodiments, configurations, styles, and sizes. Since the earliest days of wireless
researchers and engineers knew that antenna performance was ultimately governed by Maxwell’s four crisp equations, making use of these equations for antenna design was not possible due to the enormous complexities involved in modeling and computation.
(think Marconi and over a century ago), the conception, design, and fabrication of antennas has gone through several major phases. The first phase The first antennas were based on one of two fundamental structures: the monopole with an associated ground plane (sometimes called a whip antenna) (Figure 1), and the balanced, ungrounded dipole in various configurations such as the folded dipole (Figure 2). While
As a result, antenna-related
Written by Bill Schweber
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