Abstract
The location of conjugate points plays a crucial role in understanding and predicting certain radiation characteristics of reflector antenna systems. In this manuscript, we present an analytical approach for determining the location of conjugate points for both broadside radiation and beam scanning. In the 2D case, our methodology is based on the well-known mirror formula. Moving to the 3D case, we demonstrate that for broadside radiation, reflected rays converge to a single point. However, during beam scanning, incident rays from different planes converge to different points after reflection. These points can be analytically determined by locally approximating the reflector as either an ellipsoid or a hyperboloid. Our findings highlight the limitations of the conjugate point model for larger scan angles.
| Original language | English |
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| Title of host publication | 19th European Conference on Antennas and Propagation (EuCAP) |
| Publisher | IEEE |
| ISBN (Electronic) | 9788831299107 |
| DOIs | |
| Publication status | Published - 21 May 2025 |
| Event | 19th European Conference on Antennas and Propagation 2025 - Stockholm, Sweden Duration: 30 Mar 2025 → 4 Apr 2025 https://eucap.org/ |
Conference
| Conference | 19th European Conference on Antennas and Propagation 2025 |
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| Abbreviated title | EuCAP 2025 |
| Country/Territory | Sweden |
| City | Stockholm |
| Period | 30/03/25 → 4/04/25 |
| Internet address |
Keywords
- beam scanning
- conjugate points
- mirror formula
- ray tracing optics
- reflector antenna systems
ASJC Scopus subject areas
- Computer Networks and Communications
- Modelling and Simulation
- Instrumentation
- Radiation