50 citations · 117 across the 6 of their papers we have counts for
6 papers
Fundamental limitations for antenna radiation efficiency
Morteza Shahpari, David V. Thiel
Small volume, finite conductivity and high frequencies are major imperatives in the design of communications infrastructure. The radiation efficiency impacts on the optimal g…
The impact of reduced conductivity on the performance of wire antennas
Morteza Shahpari, David V. Thiel
Low cost methods of antenna production primarily aim to reduce the cost of metalization. This might lead to a reduction in conductivity. A systematic study on the impact of conduct…
Point Contacts in Modeling Conducting 2D Planar Structures
David V. Thiel, Morteza Shahpari, Jan Hettenhausen +1
Use of an optimization algorithm to improve performance of antennas and electromagnetic structures usually ends up in planar unusual shapes. Using rectangular conducting elements t…
Polarizablity of 2D and 3D conducting objects using method of moments
Morteza Shahpari, David V. Thiel, Andrew Lewis
Fundamental antenna limits of the gain-bandwidth product are derived from polarizability calculations. This electrostatic technique has significant value in many antenna evaluation…
An investigation into the Gustafsson limit for small planar antennas using optimisation
Morteza Shahpari, David V. Thiel, Andrew Lewis
The fundamental limit for small antennas provides a guide to the effectiveness of designs. Gustafsson et al, Yaghjian et al, and Mohammadpour-Aghdam et al independently deduced a v…
Hat Feed Antenna Capable of Sum and Difference Pattern Synthesis
Morteza Shahpari, Gordana K. Felic
Potentially Separate waves could propagate independently with arbitrary amplitude and phase, if one longitudinal septum is inserted in the H-Plane of the circular waveguide. The pr…