| 21. | Compound reconfiguration is the capability of simultaneously tuning several antenna parameters, for instance frequency and radiation pattern.
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| 22. | The nulls between sidelobes occur when the radiation patterns passes through the origin in the complex plane.
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| 23. | X-ray focusing devices ( crystals / mirrors ) are not easy to build for such radiation patterns.
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| 24. | At these glancing angles, electromagnetic fields and radiation patterns are the same as for a half-wave dipole.
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| 25. | The main lobes of the radiation pattern are along the axis of the helix, off both ends.
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| 26. | This created a series of spikes, or lobes, within the cardioid radiation pattern, each about 7.5 degrees wide.
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| 27. | Umbrella antennas radiate omnidirectional radiation pattern.
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| 28. | These plots of the radiation pattern correspond to a distance between the antenna and its image of 2.5?.
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| 29. | Below is a comparison of the horizontal radiation patterns at L1 for both the blade and the slot.
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| 30. | So a monopole mounted over an ideal ground plane has a radiation pattern identical to a dipole antenna.
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