Abstract
This paper presents the development of a wide-beam width, dual-band, omnidirectional antenna for the mm-wave band used in 5G communication systems for indoor coverage. The 5G indoor environment includes features of wide space and short range. Additionally, it needs to function well under a variety of circumstances in order to carry out its diverse set of network applications. The waveguide antenna has been designed to be small enough to meet the requirements of mm-wave band and utilizes a corrugated horn to produce a wide beam width. Additionally, it is small enough to integrate with 5G communication products and is easy to manufacture. This design is simple enough to have multi-feature antenna performance and is more useful for the femtocell repeater. The corrugated circularly polarized horn antenna has been designed for two frequency bands; namely, 26.5–30 GHz for the low band and 36–40 GHz for high band. The results of this study show that return-loss is better than 18 dB for both low and high band. The peak gain is 6.1 dBi for the low band and 8.7 dBi for the high band. The beam width is 105 degrees and 77 degrees for the low band and the high band, respectively. The axial ratio is less than 5.2 dB for both low and high band. Generally, traditional circularly polarized antennas cannot meet the requirements for broadband. The designs for the antennas proposed here can meet the requirements of FR2 bandwidths. This feature limits axial ratio performance. The measurement error in the current experiment comes from the high precision control on the size of the ridge.
Highlights
IntroductionThe 5G standard extends the frequency spectrum to 28 GHz and 39 GHz in millimeter-wave band
Standard extends the frequency spectrum to 28 GHz and 39 GHz in millimeter-wave band. This wireless system design will have benefits, such as high data rates and low latency, which will be utilized in new technological applications
This paper proposes a novel design that possesses both circular polarization and wide beam width properties that perfectly match the 5G
Summary
The 5G standard extends the frequency spectrum to 28 GHz and 39 GHz in millimeter-wave band This wireless system design will have benefits, such as high data rates and low latency, which will be utilized in new technological applications. Polarized horn antennas exploiting open slotted end structures have a wide band (75–110 GHz) and low AR (< 3 dB) [9]. This seems to provide a solution, but fall short with regards to beam width coverage on 5G repeater antennae. A dual-band circularly polarized horn antenna with broad beam width is presented to solve the issues of indoor coverage and other usage scenarios.
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