scholarly journals A Simple Monopole Antenna with a Switchable Beam for 5G Millimeter-Wave Communication Systems

Electronics ◽  
2021 ◽  
Vol 10 (22) ◽  
pp. 2870
Author(s):  
Hijab Zahra ◽  
Musa Hussain ◽  
Syeda Iffat Naqvi ◽  
Syed Muzahir Abbas ◽  
Subhas Mukhopadhyay
Keyword(s):  
Millimeter Wave ◽  
Communication Systems ◽  
Return Loss ◽  
Low Cost ◽  
Ground Plane ◽  
Pin Diodes ◽  
Design Evolution ◽  
Compact Antenna ◽  
Beam Switching ◽  
Millimeter Wave Communication

A simple and compact antenna with a switchable beam for millimeter-wave communication is proposed in this paper. The antenna has a planar structure, and the design evolution is discussed. The beam switching functionality was achieved by incorporating two PIN diodes in the ground plane of the antenna. By switching ON either of the PIN diodes, the inverted L-shaped stub becomes connected to the ground plane and behaves as a cavity, which causes the dispersion of the radiation pattern. Therefore, a wide-angle (±18∘) beam-switching property can be achieved using a simple and low-cost technique, without the necessity to implement additional conventional circuits. The proposed antenna is characterized by a good performance in terms of return loss, bandwidth, measured gain up to 7.95 dB, and radiation efficiency up to 84%, making it a proper candidate for IoT technology and millimeter-wave 5G devices.

scholarly journals Triangular Slot-Loaded Wideband Planar Rectangular Antenna Array for Millimeter-Wave 5G Applications

Electronics ◽  
2021 ◽  
Vol 10 (7) ◽  
pp. 778
Author(s):  
Iftikhar Ahmad ◽  
Houjun Sun ◽  
Umair Rafique ◽  
Zhang Yi
Keyword(s):  
Antenna Array ◽  
Millimeter Wave ◽  
Communication Systems ◽  
Ground Plane ◽  
Simulated Data ◽  
Impedance Bandwidth ◽  
Antenna Element ◽  
Single Antenna ◽  
Rectangular Patch ◽  
Half Power

This paper presents a design of a triangular slot-loaded planar rectangular antenna array for wideband millimeter-wave (mm-wave) 5G communication systems. The proposed array realizes an overall size of 35.5 × 14.85 mm2. To excite the array elements, a four-way broadband corporate feeding network was designed and analyzed. The proposed array offered a measured impedance bandwidth in two different frequency ranges, i.e., from 23 to 24.6 GHz and from 26 to 45 GHz. The single-antenna element of the array consists of a rectangular patch radiator with a triangular slot. The partial ground plane was used at the bottom side of the substrate to obtain a wide impedance bandwidth. The peak gain in the proposed array is ≈12 dBi with a radiation efficiency of >90%. Furthermore, the array gives a half-power beamwidth (HPBW) of as low as 12.5°. The proposed array has been fabricated and measured, and it has been observed that the measured results are in agreement with the simulated data.

scholarly journals Doppler Shift Estimation for Millimeter-Wave Communication Systems on High-Speed Railways

IEEE Access ◽  
2019 ◽  
Vol 7 ◽  
pp. 40454-40462 ◽  
Author(s):  
Chong Zhang ◽  
Gongpu Wang ◽  
Minzheng Jia ◽  
Ruisi He ◽  
Li Zhou ◽  
...  
Keyword(s):  
Millimeter Wave ◽  
Doppler Shift ◽  
Communication Systems ◽  
High Speed ◽  
Millimeter Wave Communication

Power-Efficient Beam Designs for Millimeter Wave Communication Systems

2020 ◽  
Vol 19 (2) ◽  
pp. 1265-1279 ◽  
Author(s):  
Jianjun Zhang ◽  
Yongming Huang ◽  
Jiaheng Wang ◽  
Robert Schober ◽  
Luxi Yang
Keyword(s):  
Millimeter Wave ◽  
Communication Systems ◽  
Power Efficient ◽  
Millimeter Wave Communication
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