TY - JOUR ID - 72768 TI - Development of an Enhanced Gain Substrate Integrated Waveguide H-plane Horn Antenna Using Thin Substarte JO - International Journal of Engineering JA - IJE LA - en SN - 1025-2495 AU - Rahimi, Elias AU - Neshati, Mohammad Hassan AD - Electrical, Ferdowsi University of Mashhad AD - Electrical engineering, Ferdowsi univ. of Mashhad Y1 - 2016 PY - 2016 VL - 29 IS - 8 SP - 1062 EP - 1067 KW - Horn antenna KW - Substrate integrated waveguide (SIW) KW - antenna measurement DO - N2 - In this paper a dual band and high gain H-plane horn antenna implemented by substrate integrated waveguide (SIW) using a single layer thin substrate is introduced. The proposed antenna consists of five parts of rectangular waveguide with different width arranged in a staircase manner to allow mode combination of fundamental and higher propagating modes of the structure. By adjusting the length and width of different parts, suitable combination of amplitude and phase along radiating aperture is occurred and half power beamwidth at H-plane pattern is improved. A grounded pin is added at the middle of the radiating aperture to improve Side Lobe Level (SLL) and to obtain dual band operating condition. Moreover, by adding a metallic reflector plate around the radiating aperture, the antenna gain is enhanced. The proposed antenna has been successfully simulated, fabricated and its radiation performances including reflection coefficient, radiation patterns are measured in an anechoic chamber. Measured results show that antenna gain is 9.6 dBi and 7.2 dBi at the first and second band respectively. UR - https://www.ije.ir/article_72768.html L1 - https://www.ije.ir/article_72768_33463714da9439b867e5e42af1538cb8.pdf ER -