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Jothilakshmi, P.
- Design and Analysis of Uneven Shaped Continuous Transverse Stub (CTS) Antenna
Authors
1 Velammal College of Engineering & Technology, Madurai, TN, IN
Source
Wireless Communication, Vol 3, No 10 (2011), Pagination: 688-693Abstract
The advanced mobile communication technology requires high gain low insertion loss and large bandwidth antennas. This paper proposes the new Continuous Transverse Stub antenna with unevenly shaped. This design not only reducing the loss, it also reduces the side-lobe levels. Continuous Transverse Stub (CTS) is an antenna technology that offers greater tunable bandwidth than waveguide or Microstrip patch antennas. This paper proposes a newer design of Continuous Transverse Stub (CTS) antenna. The two major problems arises, while designing large bandwidth antennae are size of the antenna and presence of side-lobe levels. When a concept is introduced, there will be sustainable improvement in its conceptual design. In this way the CTS antenna has undergone several developments. The Co-axial CTS antenna is a structure with Co-axial waveguide skeleton, which runs along the length of the antenna. Radial stubs that are in the form of circular plates separated by a dielectric medium, interrupt the waveguide at regular intervals. The proposed antenna is mainly suitable for mobile base station application. Using the simulation tool CST MICROWAVE STUDIO SUITE 2008, the various properties of the proposed model were analyzed by finite integral method.Keywords
Continuous Transverse Stub Antenna, Uneven Shaped Antenna, Gain, VSWR, Radiation Pattern.
- Modified Microstrip Beveled E-Shaped Two Element Antenna Array for Millimeter Wave Application
Authors
1 Velammal College of Engineering & Technology, Madurai, TN, IN
Source
Wireless Communication, Vol 2, No 8 (2010), Pagination: 239-244Abstract
The microstrip antenna is mainly used for wireless communication. This paper proposes Multiband E-shaped antenna array. This design improves the bandwidth, gain and directivity with low return loss. The millimeter wave communication range is 20 – 60GHz. E shaped antenna has two resonant frequencies and mainly used for millimeter wave communication. The designed antennas have low profile, easy fabrication, low cost and good isolation. The simulation and measurement results of refection co-efficient and radiation pattern are presented. The design is suitable for array applications with respect to a given frequency of 36.67 GHz –56.67GHz. This antenna design can be simulated using ADS software. The Method of Moments (MOM) is used to design the Eshaped antenna and its array. In case of MOM technique which are used to find out the solution of Green’s function.
Keywords
Microstrip Patch Antenna, Beveled E-Shaped Antenna Array, Millimeter Wave Communication, S-Parameter, Gain, Radiation Pattern.- E-Shaped Four Element Antenna Array for WLAN Application
Authors
1 ECE Department, Velammal College of Engineering and Technology, Viraganoor, Maduari, IN
2 Velammal College of Engineering and Technology, Viraganoor, Maduari, IN
Source
Wireless Communication, Vol 1, No 8 (2009), Pagination: 359-366Abstract
Major operational disadvantages of microstrip antennas are their inefficiency and their very narrow bandwidth. One of a number of reasons for the expanded development of millimeter wave systems is related to a basic property of the antenna. Some antenna configurations have been proposed for such applications but these antennas have complex structure. Therefore, the design of new type of millimeter-wave antenna which is small, light, and economical for most users is absolutely necessary. So we have designed the antenna in this range of frequency. Thus the main objective of this paper is to increase the bandwidth and gain of the microstrip antenna using different shapes of conducting patch with beveled cut feed technique. In this paper, we have designed 4 element E-shaped antenna array. This array structure offers better bandwidth, gain and directivity with low return loss. E-shaped antennas are mainly used for millimeter wave communication. The proposed antenna offers bandwidth of 14.11 GHz with gain 7.54 dB. This antenna design can be simulated using ADS software. The Method of Moments (MOM) is used to design the E-shaped antenna and its array. In case of MOM technique which are used to find out the solution of Green's function.Keywords
Microstrip Patch Antenna, Beveled E-Shaped Antenna Array, S-Parameter, Band Width, Gain, Millimeter Wave Communication.- Dual Frequency V-Shaped CTS Antenna Design
Authors
1 Velammal College of Engineering and Technology, Madurai, IN
Source
Wireless Communication, Vol 1, No 3 (2009), Pagination: 126-129Abstract
With the advent of technology in wireless communication services in mobile Devices, it has become the need of the hour to integrate multiple bands of operations. This paper proposes a newer design of Continuous Transverse Stub (CTS) antenna which is capable of supporting multi-band operations. This design not only improves the band of operation, but also reduces the total length of the antenna. The stub width varies linearly from one end to another giving it an inclined appearance. Using the simulation tool CST MICROWAVE STUDIO, the various properties of the proposed model were analyzed by finite integral method.
Keywords
Coaxial V-Shaped CTS Antenna, Multiband Omni Directional Radiation Pattern, Wireless OFDM.- Design of Multilayer Aperture Coupled Stacked Microstrip Patch Antenna for Wlan Applications
Authors
1 Department of Electronics and Communication Engineering, Sri Venkateswara College of Engineering, IN