Title :
Linear Patch Array Over Substrate Integrated Waveguide for Ku-Band
Author :
Garcia-Valverde, D. ; Masa-Campos, Jose Luis ; Sanchez-Olivares, Pablo ; Taha-Ahmed, B. ; Corcoles, Juan
Author_Institution :
Dept. of Electron. & Commun. Technol., Autonoma Univ. of Madrid (U.A.M.), Cantoblanco, Spain
Abstract :
A linearly polarized patch array with direct probe feed over substrate integrated waveguide (SIW) network (LP-PASIW) for Ku-band is presented. A double-stacked microstrip patch structure has been used as radiating elements. Internal SIW coupling patches are placed inside the SIW to obtain the desired radiation pattern. The internal coupling and external radiating patches are connected by means of copper vias. A mutual coupling model is also proposed to adjust the radiation and reflection properties of the array. An antenna prototype has been manufactured and measured. At 17.7 GHz, 16 dBi and 80% peak gain and efficiency values are obtained. Although a 10% reflection bandwidth (17-18.6 GHz) is achieved, the usable bandwidth is reduced to 3% due to array beam tilt dispersion.
Keywords :
antenna feeds; antenna radiation patterns; electromagnetic wave polarisation; microstrip antenna arrays; microwave antenna arrays; substrate integrated waveguides; waveguide antenna arrays; LP-PASIW; antenna prototype; array beam tilt dispersion; bandwidth 17 GHz to 18.6 GHz; direct probe feed; double-stacked microstrip patch structure; efficiency 80 percent; external radiating patches; frequency 17.7 GHz; internal SIW coupling patches; internal coupling patches; linearly polarized patch array; mutual coupling model; radiating elements; radiation pattern; substrate integrated waveguide network; Antennas; Arrays; Brain modeling; Couplings; Mutual coupling; Reflection; Substrates; Double-stacked patch; hybrid LSM$^{{rm y}\´}$ mode; internal coupling patches; mutual coupling model; substrate integrated waveguide (SIW);
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2013.2245623
