Zagazig University Digital Repository
Home
Thesis & Publications
All Contents
Publications
Thesis
Graduation Projects
Research Area
Research Area Reports
Search by Research Area
Universities Thesis
ACADEMIC Links
ACADEMIC RESEARCH
Zagazig University Authors
Africa Research Statistics
Google Scholar
Research Gate
Researcher ID
CrossRef
Dual-Band Millimeter-Wave Circularly Polarized Antenna for Mobile Communications
Faculty
Engineering
Year:
2022
Type of Publication:
ZU Hosted
Pages:
Authors:
Rania Ahmed Elsayed Ahmed Mansour Khalifa
Staff Zu Site
Abstract In Staff Site
Journal:
IEEE Access IEEE
Volume:
Keywords :
Dual-Band Millimeter-Wave Circularly Polarized Antenna , Mobile
Abstract:
A novel design of dual-band circularly polarized patch antenna is proposed for millimeter-wave applications of the future generations of mobile communication handsets. The antenna structure is composed of a primary circular patch and four parasitic printed elements. The circular patch has two notches on its perimeter. The primary circular patch is designed to operate at 38 GHz as its first-order resonance with perfect impedance matching over the frequency band (37- 38.5 GHz). Four parasitic elements with Y-shaped slots are capacitively coupled to the primary patch to get it operational at an additional higher frequency with perfect impedance matching over a wideband (48.2-50.1 GHz). Defects in the ground plane are made as two square slots. The notches on the circumference of the circular patch and the square slots in the ground plane are aligned to a diagonal that makes 45o with the axis of symmetry of the feeding line. The width of each slot and the diagonal distance between them are the design parameters that can be set to produce circular polarization with satisfactory axial ratio (AR). The outline of the composite planar antenna structure has a square shape so as not to degrade the circular polarization. Also, to satisfy the impedance matching without disturbing the circular polarization, the primary patch is fed through a tapered microstrip line instead of using a microstrip line with inset feed. The achieved gain, AR, and radiation efficiency are 6.6 dBi, 0.6 dB, and 92%, respectively, at 38 GHz and are 6.7 dBi, 1.6 dB, and 75%, respectively, at 50 GHz. The antenna is printed on a substrate of thickness 0.25 mm and the outer dimensions of the planar composite patch structure are 2:9 mm x 2:9 mm. The antenna bandwidth to provide good circular polarization with perfect impedance matching at the same time are 800 MHz (37-37.8 GHz) and 200MHz (49.9-50.1 GHz) for the lower and higher frequency bands, respectively. The proposed antenna is fabricated, and its performance assessed by simulation is validated by comparison with the results of microwave measurements. Both the simulation and measurement results show good performance of the proposed antenna over the lower and higher frequency bands of operation.
Author Related Publications
Rania Ahmed Elsayed Ahmed Mansour Khalifa, "Speech Compression Techniques based on Gaussian Mixture Model and Wavelet Analysis", Ain Shams University, Faculty of Engineering, 2009
More
Rania Ahmed Elsayed Ahmed Mansour Khalifa, "Hybrid Method based on Multi-Feature Descriptor for Static Sign Language Recognition", (Institute of Electrical and Electronics Engineers (IEEE, 2017
More
Rania Ahmed Elsayed Ahmed Mansour Khalifa, "Skin-based Adaptive Background Subtraction for Hand Gesture Segmentation", (Institute of Electrical and Electronics Engineers (IEEE, 2015
More
Rania Ahmed Elsayed Ahmed Mansour Khalifa, "Hand Gesture Recognition Based on Dimensionality Reduction of Histogram of Oriented Gradients", (Institute of Electrical and Electronics Engineers (IEEE, 2017
More
Rania Ahmed Elsayed Ahmed Mansour Khalifa, "Performance Enhancement of Indoor Cellular Visible Light Communication through Cell Size and Wavelength Reuse Pattern", Springer Nature, 2023
More
Department Related Publications
Abdelhamied Abdelmoniem Mohamed Shalan, "Design and Simulation of A single Feed Dual-Band U-Slot Patch Antenna", لايوجد, 1900
More
Abdelhamied Abdelmoniem Mohamed Shalan, "Wideband Overlappled Patches Microstrip Antennas", لايوجد, 1900
More
Abdelhamied Abdelmoniem Mohamed Shalan, " S. H. Zainud-Deen, M. N. I. Fahmy, and A. A. M. Shaalan, "On the Elimination of Backscattering from A Straight Wire Systems, Symposium on Antenna Technology and Applied Electromagnetics, ATEM, Canada, 1992", لايوجد, 1900
More
Mohamed Sharaf Ismail Sayed , "Low Complexity Contrast Enhancement Algorithm for Nighttime Visual Surveillance", International Conference on Intelligent Systems Design and Applications ISDA, 2010
More
Saleh Ibrahiem Saied Saleh, "ISI Tolerance of Cyclic Prefix Free Coherent Optical OFDM Communication systems", ITG, 2013
More
جامعة المنصورة
جامعة الاسكندرية
جامعة القاهرة
جامعة سوهاج
جامعة الفيوم
جامعة بنها
جامعة دمياط
جامعة بورسعيد
جامعة حلوان
جامعة السويس
شراقوة
جامعة المنيا
جامعة دمنهور
جامعة المنوفية
جامعة أسوان
جامعة جنوب الوادى
جامعة قناة السويس
جامعة عين شمس
جامعة أسيوط
جامعة كفر الشيخ
جامعة السادات
جامعة طنطا
جامعة بنى سويف