Sloper antenna
The Sloper Antenna is a slanted Dipole antenna.[1][2]
Advantages
While horizontal dipoles required two large support masts, this antenna type only needs one large mast. It is therefore widely used by radio amateurs with limited space.[3] In particular for low frequencies this antenna form is interesting.[4] The angle of the slope is usually between 45°–60° and the lower end of the wire is at least 1⁄6 wavelength above the electrical ground.[3]
A sloper is typically fed with a coaxial cable in the center, at the top of the center support mast. At least 1⁄4 of the wavelength of feedline must be at 90° angle to the antenna.[3] It is also possible to feed the antenna asymmetrically.[5] Due to the low-angle radiation pattern this antenna has, it performs well for long distance contacts (QSOs) (DX).[3]
References
- v
- t
- e
- Isotropic radiator
- Batwing antenna
- Biconical antenna
- Cage aerial
- Coaxial antenna
- Crossed field antenna
- Dielectric resonator antenna
- Dipole antenna
- Discone antenna
- Folded unipole antenna
- Franklin antenna
- Ground-plane antenna
- G5RV antenna
- Halo antenna
- Helical antenna
- Inverted-F antenna
- Inverted vee antenna
- J-pole antenna
- Mast radiator
- Monopole antenna
- Random wire antenna
- Rubber ducky antenna
- Sloper antenna
- Turnstile antenna
- T2FD antenna
- T-antenna
- Umbrella antenna
- Whip antenna
- Adcock antenna
- AS-2259 Antenna
- AWX antenna
- Beverage antenna
- Cantenna
- Cassegrain antenna
- Choke ring antenna
- Collinear antenna array
- Conformal antenna
- Corner reflector antenna
- Curtain array
- Folded inverted conformal antenna
- Fractal antenna
- Gizmotchy
- Helical antenna
- Horn antenna
- Log-periodic antenna
- Loop antenna
- Microstrip antenna
- Moxon antenna
- Offset dish antenna
- Patch antenna
- Phased array
- Planar array
- Parabolic antenna
- Plasma antenna
- Quad antenna
- Reflective array antenna
- Regenerative loop antenna
- Rhombic antenna
- Sector antenna
- Short backfire antenna
- Slot antenna
- Sterba antenna
- Vivaldi antenna
- WokFi
- Yagi–Uda antenna