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An effective method for reducing the size of the broadband patch antenna with thick substrate is proposed. By using a U-shaped ground plane with three parallel slots embedded in it in place of the conventional planar ground, the half E-shaped patch antenna's resonant frequency can be greatly lowered Although the size of the antenna (especially the thickness of the air substrate) is significantly reduced,...
Design of a 35 GHz conformal microstrip patch antenna 4 x 4 elements array on a perfectly conducting cone is presented. A new kind of microstrip feed approach, which is hemline feed method (HFM), is used to design the patch element. And this kind of elements is used for forming the conformal microstrip array. The influence of the conical curvature on the radiation features of the conformal antenna...
A novel cylindrical conformal 2times2 microstrip antenna sub-array operating at millimeter-wave band is proposed.. A planar array element with an H-shaped coupling slot is investigated for its bandwidth feature and radiation performance. Compared with conventional microstrip antenna array, a planar 2times2 arrays is designed, and the results of comparison illustrates that the proposed design has less...
The phase shift features of the RF MEMS phase shifter are described. The approach of adding an insulation layer below the RF MEMS bridge to increase phase shift and improve reliability is proposed, in addition, the saw-shaped CPW is used to decrease the return loss introduced by the insulation layer. By using network theory and CST microwave studio simulation tool, the proposed RF MEMS phase shifter...
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