DESIGN AND IMPLEMENT OF MULTIFUNCTION MULTIPLE-INPUT-MULTIPLE-OUTPUT PASSIVE CIRCUITS
Amany Mostafa Ahmed Abd El Rahman;
Abstract
Nowadays, wireless communication systems are increasingly developed to support demands of people. Many current communication systems are coming with several operating bands. Therefore, the multifunction microwave circuits design are Rapid developments in modern communication systems have imposed requirements such as small size and multifunction operation for RF / microwave components.
The thesis is divided into five chapters, as listed below:
• Chapter One: This chapter is an introduction to the thesis that clarifies the multifunction circuits, multifunction techniques and describes the types of multifunction circuits beside explanation of the RF Front-end of 4G mobile systems and the organization of this thesis.
• Chapter Two: This chapter explains the microstrip antenna, we proposed a design of a microstrip antenna but this design did not achieve the resonance frequency of the fourth generation of mobile communication system then we applied three techniques (the stub length, separation and via technique) to achieve our target. Finally, we introduced the design of the antenna that resonates at 5.2 GHz (4G) by using ready–made software package Zeland then we fabricated and measured this design. A comparison between the simulated results and measured results is introduced.
• Chapter Three: This chapter explains the compact microstrip diplexer with Bandpass filter. We applied the same three techniques of the antenna on the microstrip diplexer to achieve the best design with resonance frequency 5.2 GHz (4G) by using software package Zeland IE3D.
Also, we explained the microstrip bandpass filter-antenna (Filtenna). We applied the three techniques (stub length technique, separation technique and via technique) on the structure of the microstrip filter and designed the compact bandpass filter with resonance frequency 5.2 GHz (4G) by using software package Zeland IE3D then we fabricated and measured this design. A comparison between the simulated results and measured results is introduced.
• Chapter Four: we presented a design of multifunction circuit antenna, filter, and diplexer in one board (Anfilplexer) at resonance frequency 5.2GHz (4G) then we fabricated and measured this design. A comparison between the simulated results and measured results is introduced.
We proposed a design of multifunction circuit has a 3G resonance frequency at (2.42GHz), and another design has a 2G resonance frequency at (1.82GHz). Finally, we presented the library for front-end receiver of mobile generation in communication system by using the multifunction circuits.
• Chapter Five: This chapter discusses conclusion and future work for this research point.
• Last Part: it discusses appendices and references for this thesis.
Key Words: Front-end subsystem of mobile, 4G, Microstrip antenna, Microstrip BPF, and Microstrip Diplexer.
The thesis is divided into five chapters, as listed below:
• Chapter One: This chapter is an introduction to the thesis that clarifies the multifunction circuits, multifunction techniques and describes the types of multifunction circuits beside explanation of the RF Front-end of 4G mobile systems and the organization of this thesis.
• Chapter Two: This chapter explains the microstrip antenna, we proposed a design of a microstrip antenna but this design did not achieve the resonance frequency of the fourth generation of mobile communication system then we applied three techniques (the stub length, separation and via technique) to achieve our target. Finally, we introduced the design of the antenna that resonates at 5.2 GHz (4G) by using ready–made software package Zeland then we fabricated and measured this design. A comparison between the simulated results and measured results is introduced.
• Chapter Three: This chapter explains the compact microstrip diplexer with Bandpass filter. We applied the same three techniques of the antenna on the microstrip diplexer to achieve the best design with resonance frequency 5.2 GHz (4G) by using software package Zeland IE3D.
Also, we explained the microstrip bandpass filter-antenna (Filtenna). We applied the three techniques (stub length technique, separation technique and via technique) on the structure of the microstrip filter and designed the compact bandpass filter with resonance frequency 5.2 GHz (4G) by using software package Zeland IE3D then we fabricated and measured this design. A comparison between the simulated results and measured results is introduced.
• Chapter Four: we presented a design of multifunction circuit antenna, filter, and diplexer in one board (Anfilplexer) at resonance frequency 5.2GHz (4G) then we fabricated and measured this design. A comparison between the simulated results and measured results is introduced.
We proposed a design of multifunction circuit has a 3G resonance frequency at (2.42GHz), and another design has a 2G resonance frequency at (1.82GHz). Finally, we presented the library for front-end receiver of mobile generation in communication system by using the multifunction circuits.
• Chapter Five: This chapter discusses conclusion and future work for this research point.
• Last Part: it discusses appendices and references for this thesis.
Key Words: Front-end subsystem of mobile, 4G, Microstrip antenna, Microstrip BPF, and Microstrip Diplexer.
Other data
| Title | DESIGN AND IMPLEMENT OF MULTIFUNCTION MULTIPLE-INPUT-MULTIPLE-OUTPUT PASSIVE CIRCUITS | Other Titles | تصميم وتنفيذ الدوائر الغيرفعاله متعددة الوظائف و المداخل والمخارج | Authors | Amany Mostafa Ahmed Abd El Rahman | Issue Date | 2017 |
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