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Implementing and Operating Cisco Enterprise Network Core Technologies (ENCOR) · Cisco
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The radiation pattern shows energy concentrated in one primary direction, with minimal energy behind the antenna — a hallmark of a directional antenna. The lobed structure and forward-focused shape indicate a broad directional beam, which is typical of a patch antenna. Patch antennas are commonly used in Wi-Fi for focused coverage (e.g., on walls to cover a room or hall). ❌ Why the others are incorrect: A. Multidirectional – Not a standard antenna type; likely a distractor. C. Omnidirectional – Would show a doughnut-shaped or spherical pattern, radiating equally in all horizontal directions. This is clearly not that. D. Yagi – Has a very narrow, high-gain beam (long-range) and often a single strong lobe with minimal side lobes. This image shows multiple lobes, more consistent with a patch, not a Yagi.
"Directional patch" antenna and "yagi" antenna look quite similar. Pay attention to the rear end (negative Z). See e.g. here: https://www.raymaps.com/index.php/some-common-antenna-radiation-patterns/
hi! what is the difference with directional? thanks