Radiation resistance, power gain, aperture and efficiency of the non-planer dipole antenna

Theoretical expressions for radiation resistance (R0), power gain (G), aperture (A) and efficiency (¿), of the non-planer centre fed dipole antenna with one arm inclined, by an angle ¿1 to its axis (which lies along Z axis) in the Y-Z plane and the other arm inclined by an angle ¿2 in the X-Z plane, are derived. It is found that radiation resistance, power gain and efficiency are functions of ¿1 and ¿2.