Antenna Catalog
Browse designs with photos, specs, and radiation patterns.
5/8-Wave Vertical
A taller-than-quarter-wave vertical that pushes more energy toward the horizon.
ASR-11 Airport Surveillance Radar
A modern digital S-band terminal radar combining primary and secondary surveillance.
ASR-9 Airport Surveillance Radar
The rotating S-band primary radar that paints aircraft in the airspace around an airport.
ATC Tower VHF Communications Antenna
The omnidirectional vertical whips that carry voice between controllers and aircraft.
Axial-Mode Helical
A coil of wire about a wavelength around that radiates a circularly polarized beam.
Beverage Antenna
A long, low receiving wire prized for its quiet, directional low-band reception.
Biquad
Two square loops over a reflector—an easy, effective microwave beam.
Bowtie Antenna
A dipole with triangular flared elements for wideband, often UHF, use.
Collinear Array
Several in-line radiators stacked to squash the pattern toward the horizon.
Corner Reflector
A dipole in front of a V-shaped reflector for moderate, simple gain.
Cubical Quad
A beam built from full-wave loops instead of straight elements.
Discone
A disc-over-cone vertical with enormous bandwidth and an omnidirectional pattern.
End-Fed Half-Wave (EFHW)
A half-wave wire fed at its high-impedance end through a transformer.
Folded Dipole
A dipole made from a closed loop of two parallel conductors for higher impedance and bandwidth.
Full-Wave Loop
A loop one wavelength in circumference with gain and low noise.
G5RV Multiband Dipole
A 102-foot doublet with a matching section that loads on several HF bands.
Ground Plane Antenna
A quarter-wave vertical with radials that form an artificial ground.
Half-Wave Dipole
The simplest resonant antenna: two straight conductors fed at the center.
Horn Antenna
A flared waveguide that radiates a clean, directive beam at microwave frequencies.
ILS Glideslope Antenna
A tower beside the runway that projects the correct descent angle using ground reflection.
ILS Localizer Array
A wide row of antennas past the runway end that defines the approach centerline.
Inverted-V Dipole
A center-fed dipole with its ends sloping down from a single high support.
J-Pole
An end-fed half-wave vertical matched by a quarter-wave parallel stub.
Log-Periodic Dipole Array (LPDA)
A directional, extremely broadband array of progressively scaled dipoles.
Microstrip Patch
A flat metal patch printed on a dielectric board that radiates broadside.
Normal-Mode Helical (Rubber Duck)
A short, coiled flexible antenna that fits a quarter-wave into a stubby package.
Off-Center-Fed Dipole (Windom)
A dipole fed away from center to find an impedance common to several bands.
Parabolic Dish Reflector
A curved reflector that focuses a feed antenna into a very high-gain pencil beam.
Phased Array
Many elements whose feed phases steer and shape the beam electronically.
Planar Inverted-F Antenna (PIFA)
A folded, shorted patch that fits an efficient antenna into a tiny device.
Quarter-Wave Monopole
A single vertical quarter-wavelength rod that works against a ground plane.
Rhombic Antenna
A large diamond of wire, terminated to give high-gain, single-direction radiation.
Secondary Surveillance Radar (Mode-S Beacon)
The long flat 'hockey-stick' array atop the radar that interrogates aircraft transponders.
Slot Antenna
A narrow slot cut in a conducting sheet that radiates like a complementary dipole.
Small Transmitting (Magnetic) Loop
A compact tuned loop, far smaller than a wavelength, with sharp tuning and high efficiency.
Turnstile Antenna
Two crossed dipoles fed in quadrature for circular or omnidirectional coverage.
VOR Navigation Antenna
A ground beacon whose circular antenna array lets aircraft read their bearing from the station.
Whip Antenna
A flexible rod monopole used on vehicles and portable radios.
Yagi-Uda
A directional array of a driven dipole with parasitic reflector and directors.