Abstract
A new 60 GHz band single-input switched beam antenna is proposed for the fifth-generation (5G) millimeter-wave network applications. The presented design is capable of electronically switching the main beam in two different directions via a proposed microstrip-line-to-slotline single-pole dual-throw (SPDT) switch based on commercially available p-i-n diodes. The antenna is fabricated in a low-cost printed circuit board process on a CuClad 217 substrate. Measurements were carried out in an anechoic chamber and experimental results show good agreement with numerical simulations. The antenna is capable of switching the main beam to the +45 $^\circ$ and −45 $^\circ$ directions in the horizontal plane with a gain of about 3 dBi and a beamwidth of 80 $^\circ$ in both states. The presented prototype shows several advantages over other state-of-the-art millimeter-wave reconfigurable antennas such as a simple electrical switching mechanism, low-cost manufacturing, a low profile, and a small footprint. These features make the presented antenna ideal for low-cost millimeter-wave 5G applications, particularly in end-devices working under the Internet-of-Things paradigm.
Highlights
I N MODERN fifth-generation (5G) communication systems there is an increasing demand for exchanging huge amount of data from end-devices with small latency, as well as expectations that the devices will have reduced size and improved energy efficiency
The proposed antenna consists of two radiators pointing different directions that are fed by a single RF port through an single-pole dual-throw (SPDT) switch
This letter presents the design and associated experimental verification of a novel simple switched-beam antenna based on a distributed SPDT switch using microstrip-to-slotline transition and p-i-n diodes, which were integrated with linear tapered slot radiators
Summary
I N MODERN fifth-generation (5G) communication systems there is an increasing demand for exchanging huge amount of data from end-devices with small latency, as well as expectations that the devices will have reduced size and improved energy efficiency. Antenna arrays are often used to overcome the propagation issues as by increasing the number of antenna elements it is possible to generate a narrow directional beam with high gain [4] which, significantly limits the angular coverage of communication. This can be solved by antennas with steerable beam where a set of directional radiation patterns is available to increase coverage of the system. TRZEBIATOWSKI et al.: SIMPLE 60 GHz SWITCHED BEAM ANTENNA FOR 5G MILLIMETER-WAVE APPLICATIONS
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