Computer Networking Antennas

Select based on application: omnidirectional antennas provide 360° coverage for local area coverage, directional (panel or Yagi) antennas concentrate signal for long-distance point-to-point links, and sector antennas cover wide areas with focused azimuth sectors; match antenna gain and beamwidth to your range and coverage goals

Performance depends on antenna gain (higher gain focuses signal farther but narrows beamwidth), frequency band compatibility (2.4 GHz vs 5 GHz or specific licensed bands), transmitter power, cable and connector losses, mounting height/clear line of sight, and local interference or obstacles

Confirm the antenna connector (SMA, RP-SMA, N-type, TNC, etc.) matches your device or plan for an adapter, and use low-loss coax (LMR-200/400 or equivalent) for longer runs to minimize signal loss; shorter runs allow flexibility with higher-loss cables

Higher gain increases effective range but reduces vertical/horizontal beamwidth, creating a narrower coverage area; choose high-gain directional antennas for long point-to-point links and lower-gain wide-beam antennas for broad local coverage to avoid dead zones

Verify the antenna supports the device's frequency bands and polarization, that connector types match or can be adapted, and that antenna gain and radiation pattern are suitable for the device's transmit power and intended deployment (indoor vs outdoor)

Prices vary by type and build: basic indoor antennas and small omnidirectional units are available at lower price points, while high-gain directional, outdoor, and heavy-duty marine/industrial models cost more; factors include gain, materials, weatherproofing, and brand