StudyToCert

All certifications / CWNA / Lessons

CWNP Certified Wireless Network Administrator CWNA-109 · Domain 1: Radio frequency (RF) technologies

Antenna types: omnidirectional, semi-directional (patch, panel, Yagi, sector) and highly directional (parabolic dish)

▶ Watch the overview video

Last reviewed September 25, 2026 · Leer en español

An antenna does not create power; it focuses the power it receives in some directions at the expense of others. Choosing the right antenna shape for a space is a core CWNA skill. The exam groups antennas into three families: omnidirectional, semi-directional and highly directional.

Free account

Keep reading for free

Create a free StudyToCert account to read the rest of this lesson: 6 more sections, 5 key terms, a real-world example, an exam tip and self-check questions. Every lesson, lab and practice test is free with an account.

Sign up free Log in

Study CWNA for free
A week-by-week plan with every lesson, quizzes, checkpoint tests, a practice exam and hands-on labs.
Open the CWNA study plan