Abstract
A novel multi-band end-fire antenna array was designed, fabricated, and characterized. Analytical calculations were carried out to determine the critical antenna dimensions and the design was optimized using a 3D electromagnetic finite-element solver. The measured results were in good agreement with the designed results. The proposed antenna array exhibits multi-band capabilities which can be potentially used for applications that require a multi-band end-fire radiation pattern.
Highlights
Traditional base stations employ omnidirectional antennas where the transmit power is radiated in all directions
To verify the analysis presented for this antenna structure, the antenna was measured
The design was fabricated by Advanced Circuits, and measured in the microwave laboratory of the Engineering and Applied Science (EAS) building at the University of Colorado at Colorado Springs
Summary
Traditional base stations employ omnidirectional antennas where the transmit power is radiated in all directions. The equal distribution leads to a portion of the power being transmitted throughout the cell but not received by the user. This wasted power becomes forward link interference to other base stations or users in other cells. Each new user added to a cell increases the interference and noise levels on the reverse link. This results in a reduction in the signal-to-noise ratio, which in turn degrades the performance of the detection and demodulation operations.
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