Steerable dual-band planar microstrip phased array antenna for 3G and 4G wireless communication systems

2011 ◽  
Author(s):  
M. Ali Soliman ◽  
W. Swelam ◽  
Ali Gomaa ◽  
T.E. Taha
Keyword(s):  
Wireless Communication ◽  
Communication Systems ◽  
Phased Array ◽  
Array Antenna ◽  
Dual Band ◽  
Wireless Communication Systems ◽  
Phased Array Antenna ◽  
4G Wireless

scholarly journals Frequency Diverse Array Antennas: From Their Origin to Their Application in Wireless Communication Systems

2018 ◽  
Vol 2018 ◽  
pp. 1-12 ◽  
Author(s):  
Shaddrack Yaw Nusenu ◽  
Abdul Basit
Keyword(s):  
Wireless Communication ◽  
Communication Technology ◽  
Communication Systems ◽  
Phased Array ◽  
Beam Steering ◽  
Array Antenna ◽  
Wireless Communication Systems ◽  
Phased Array Antenna ◽  
Frequency Diverse Array ◽  
Near Future

Wireless communication systems have gained considerable growth rate nowadays, with the anticipation that communications will be available everywhere and anywhere in the near future. Phased array antenna whose beam steering is fixed in an angle for all range cells has been utilized for wireless communications. To mitigate this problem, a new array concept, namely, frequency diverse array (FDA), was proposed. This paper presents how FDA technology could be useful in today’s wireless communication technology. FDA is distinct from phased array in a sense that it employs frequency increment across array elements. The use of a frequency increment creates a beam steering that is a function of angle, time, and range which allows the FDA antenna to transmit the energy along the prespecified range and angle direction. In addition, we consider the time-variant beampattern aspect of an FDA, which has normally been ignored in the literature. In this study, we present the mathematical fundamentals of FDA antenna and why it could be exploited for wireless communication systems. Furthermore, FDA using Butler matrix for communication has been discussed. Performance analysis in terms of transmit beampattern, signal-to-interference-and-noise ratio (SINR), and direction of arrival has been presented and compared with that of phased array antenna.

scholarly journals Cooperative Antenna Selection Method for Directional Antenna Ad Hoc Networks Based on ALOHA

2021 ◽  
Vol 2021 ◽  
pp. 1-15
Author(s):  
Bowen Zheng ◽  
Songlin Sun ◽  
Guoyuan Shao
Keyword(s):  
Communication Systems ◽  
Phased Array ◽  
Time Synchronization ◽  
Antenna Selection ◽  
Transmission Probability ◽  
Directional Antennas ◽  
Selection Method ◽  
Array Antenna ◽  
Phased Array Antenna ◽  
External Time

In recent years, directional antennas or phased array antennas are being widely used in communication systems due to the higher antenna gains. However, without external time synchronization and angle synchronization, the unsynchronized node usually takes a long time to synchronize with the existing nodes due to the narrow beams. Although the multibeam transmission or the digital phased array antenna can reduce this problem, it is clear that the cost of the digital phased array antenna is currently too high. Without external time synchronization and angle synchronization, a cooperative antenna selection method based on directional antennas is proposed in this paper. Our method only uses the narrow beams to transmit and to receive and reduces the time for self-synchronization. In this paper, we give the expression of the expected average time for the self-synchronization of multiple nodes, transform the problem into the problem of finding the minimum value of the infinite norm of the sequence, and then propose a cooperative antenna selection method which calculates the optimal transmission probability distribution of the node in different directions through parameter sharing and relative geometric position relationship between nodes. Finally, we verify the proposed method through simulation, and the number of beams is set between 6 and 10. In a typical scenario of five nodes, our method reduces the maximum average self-synchronization time by 50% averagely, compared with the traditional method which sends the different antenna beams at equal probability.

scholarly journals Effect of the defected microstrip structure shapes on the performance of dual-band bandpass filter for wireless communications

2021 ◽  
Vol 10 (1) ◽  
pp. 232-240
Author(s):  
Mussa Mabrok ◽  
Zahriladha Zakaria ◽  
Yully Erwanti Masrukin ◽  
Tole Sutikno ◽  
Hussein Alsariera
Keyword(s):  
Wireless Communication ◽  
Communication Systems ◽  
Bandpass Filter ◽  
Dual Band ◽  
Center Frequency ◽  
Wireless Communication Systems ◽  
Notch Band ◽  
Quarter Wavelength ◽  
Crucial Component ◽  
Microstrip Structure

Due to the progression growth of multiservice wireless communication systems in a single device, multiband bandpass filter has attract a great attention to the end user. Therefore, multiband bandpass filter is a crucial component in the multiband transceivers systems which can support multiple services in one device. This paper presents a design of dual-band bandpass filter at 2.4 GHz and 3.5 GHz for WLAN and WiMAX applications. Firstly, the wideband bandpass filter is designed at a center frequency of 3 GHz based on quarter-wavelength short circuited stub. Three types of defected microstrip structure (DMS) are implemented to produce a wide notch band, which are T-inversed shape, C-shape, and U- Shape. Based on the performance comparisons, U-shaped DMS is selected to be integrated with the bandpass filter. The designed filter achieved two passbands centered at 2.51 GHz and 3.59 GHz with 3 dB bandwidth of 15.94 % and 15.86 %. The proposed design is very useful for wireless communication systems and its applications such as WLAN and WiMAX 

scholarly journals A Dual-Band Microwave Filter Design for Modern Wireless Communication Systems

IEEE Access ◽  
2019 ◽  
Vol 7 ◽  
pp. 98786-98791 ◽  
Author(s):  
Jianchun Xu ◽  
Ke Bi ◽  
Xiaojun Zhai ◽  
Yanan Hao ◽  
Klaus D. Mcdonald-Maier
Keyword(s):  
Wireless Communication ◽  
Communication Systems ◽  
Filter Design ◽  
Dual Band ◽  
Microwave Filter ◽  
Wireless Communication Systems

Compact phased array antenna system based on dual-band operations

2014 ◽  
Vol 56 (6) ◽  
pp. 1391-1396 ◽  
Author(s):  
Han Ren ◽  
Jin Shao ◽  
Rongguo Zhou ◽  
Bayaner Arigong ◽  
Hualiang Zhang
Keyword(s):  
Phased Array ◽  
Antenna System ◽  
Array Antenna ◽  
Dual Band ◽  
Phased Array Antenna

Tapered meander slot antenna for dual band personal wireless communication systems

2003 ◽  
Vol 36 (5) ◽  
pp. 381-385 ◽  
Author(s):  
Cuthbert M. Allen ◽  
Atef Z. Elsherbeni ◽  
Charles E. Smith ◽  
Chun-Wen P. Huang ◽  
Kai-Fong Lee
Keyword(s):  
Wireless Communication ◽  
Communication Systems ◽  
Dual Band ◽  
Slot Antenna ◽  
Wireless Communication Systems
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