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Directional Antennas

Directional antennas concentrate RF or microwave energy toward a defined coverage direction. They are used in point-to-point links, radar support paths, telemetry, RF perimeter coverage, field testing and communication infrastructure.

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Directional RF antenna for point-to-point coverage
Microwave Backhaul & Point-to-Point LinksMicrowave backhaul links move traffic over directional RF paths between sites, using frequency conversion, filtering, amplification, waveguide interconnect and aligned antennas.RF Perimeter ProtectionRF perimeter protection uses antennas, receiver modules, detection paths and low-loss interconnects to observe radio activity around secured sites. Signal direction, coverage, sensitivity and interference rejection shape perimeter awareness.Field RF Service & TroubleshootingField RF service focuses on diagnosing installed RF paths, cables, antennas, connectors and reflected-power behavior when equipment must be checked outside the lab.Weather Radar RF HardwareRF and microwave hardware for weather radar transmit paths, antenna feeds, waveguide filtering and power verification.

Browse applications

Microwave Backhaul RF ChainMicrowave backhaul RF chains carry point-to-point traffic through conversion, filtering, amplification, directional antennas and low-loss interconnect. Band plan, channel width, transmit power, receiver margin, antenna gain and outdoor limits shape the chain.Antenna Feed & MatchingAntenna feed and matching hardware carries RF energy between the transceiver and radiating element while managing impedance, loss, coupling and mechanical fit. It applies to coaxial, waveguide and custom feed paths.

FAQ

How are antenna VSWR, return loss, reflection coefficient and mismatch loss related?

VSWR, return loss and reflection coefficient express port mismatch; mismatch loss quantifies the accepted-power penalty, but none proves radiation efficiency or pattern.

What is the difference between antenna gain, directivity, beamwidth and sidelobes?

Directivity describes angular concentration, gain includes dissipative efficiency, beamwidth describes main-beam extent and sidelobes describe radiation outside that beam.

Why can an installed antenna pattern differ from the free-space data sheet?

Ground planes, structures, cables, radomes and mounting tolerances change current distribution and scattering, which can alter match, gain, pattern, polarization and phase center.

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Directional antennas

Directional antennas focus radiation toward a defined area instead of radiating evenly in all directions. This behavior can improve received level, extend link distance, reduce unwanted pickup and control coverage where the RF path has a known direction.

Coverage and link behavior

Key product data includes operating frequency, gain, beamwidth, front-to-back ratio, sidelobe behavior, polarization, VSWR, power handling, connector type, wind load, mounting method and pointing range. These details matter for microwave backhaul, telemetry links, radar support paths, RF perimeter coverage, field measurements and fixed communication infrastructure.