SignalPrep
Basic Qualification · B-006 Feedlines and antenna systems · B-006-013-002

What is a delta loop antenna with parasitic elements?

  1. AAn antenna made of a large multi-turn triangular loop
  2. BAn antenna system made of three vertical antennas, arranged in a triangular shape
  3. CAn antenna made from several triangular coils of wire on an insulating form
  4. DAn antenna consisting of multiple elements, each a triangular loop whose total length is approximately one

Correct answer: D — An antenna consisting of multiple elements, each a triangular loop whose total length is approximately one. From the official ISED question bank, verified word for word.

Why

A delta loop antenna with parasitic elements works like a standard Yagi beam, but instead of straight rods, every part is shaped as a triangle. The full explanation — and one for every question — is in Pro.

Practise this section

Feedlines and antenna systems is section B-006 of the Basic exam: Getting the signal out: antennas, feedlines, SWR, baluns, matching, and why antenna length depends on frequency.

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