The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
In this paper, the design, optimization and simulation of a dual-band coaxial-fed H-slot microstrip patch antenna for WiMAX/WLAN application is presented. It operates on 3.6–3.7 GHz and 5.7–5.8 GHz bands. Radiating patch lies on the Teflon substrate which is having low dielectric constant. Coaxial feeding technique is used to feed the antenna with 50 ohm impedance. This proposed antenna enhances the...
Micro strip patch antennas are strong candidates for use in many wireless communications applications. In this paper, the design, optimization and simulation of a dual-band modified U-slot micro strip patch antenna for WiMAX/WLAN application is presented. It operates on 2.45-2.57 GHz and 5.1-5.4 GHz bands. Radiating patch lies on the Rogers RT/duroid 5880 substrate which is having low dielectric constant...
In this paper, a wideband circular micro strip patch antenna design is proposed and it will be suitable for wireless communication for GPS, GSM, CDMA, 3G, 4G, Wi-Fi, W-MAX, Bluetooth, and W-LAN. This antenna is designed on dielectric substrate that having the dielectric constant 3.2 and height of substrate is 0.762mm. The proposed structure of the antenna is simulated on CST simulation software and...
In this paper, a triple-band inverted F-slot microstrip patch antenna for WiMAX application is presented. The radiation performance such as VSWR, return loss, radiation pattern and gain of the antenna are simulated using Ansoft HFSS and presented. The operating frequencies of the proposed design fall in three bands of operation for WiMAX technology which are 2.4 GHz (2.5–2.8 GHz) called the low-band,...
This paper deals with design and analysis of chebyshev ultra-wideband (UWB) bandpass filter with wide passband using defected ground structure. The BPF is constructed from the step impedance lowpass filter (LPF), optimum distributed highpass filter (HPF) and four rectangular shaped DGS were etched on the ground plane. Furthermore, the LPF and HPF are designed, based on their equivalent L-C circuit...
A novel quad-band unequal power divider with coupled line section using stepped-impedance transformers is presented in this paper. Coupled lines section is used to achieve the necessary impedance transformation at four selected frequencies. The topology of the structure, different from conventional Wilkinson power divider, is the coupled lines instead of the transmission lines. In this paper the structure...
In the modern era of wireless communication reconfigurable radios are becoming very popular due to its ability to operate with diverse frequency range with the same hardware. One of the important aspects of such a radios is the antenna. This paper reports a new, compact reconfigurable antenna with the size of 22 × 16 × 1 mm3. The designs are carried out using FR-4 substrate which has 4.05 dielectric...
A novel Dual band equal power divider with coupled line section using stepped-impedance transformers is presented in this paper. Coupled lines section is used to achieve the necessary impedance transformation at two selected frequencies. The topology of the structure, different from conventional Wilkinson power divider, is the couple lines instead of the transmission lines. In this paper the structure...
New Simple and compact wide Ku-band Microstrip patch antenna is proposed. Defected patch and ground design is used to achieve wide band. The proposed antenna is designed on FR-4 substrate with dielectric constant 4.9 and thickness 1 mm and its overall size is 17 × 17 × 1.07 mm3 with patch size 13 × 11 × 0.035 mm3. The results of proposed antennas like return loss, VSWR and radiation pattern (gain,...
This paper proposes a compact and tunable notch ultrawide band bandpass filter. We used the interdigital resonator for designing this filter. Using interdigital finger resonator we are getting the ultrawide band with one notch and due to diode we are getting the second notch. When diode is in OFF state we are getting one notch at 7.75GHz and in ON state we are getting the two notches one the previous...
A novel RF power divider for CDMA (1.8GHz), Bluetooth (2.4GHz) & 3G (2.1GHz & 2.5GHz) application using stepped-impedance technology on microstrip line is proposed in this paper. This divider is formed by installing the concept of a microstrip multi-section impedance transformer and for achieving of wideband using stub matching. Finally, a compact power divider is designed, and it is demonstrated...
In this paper the performance analysis of ninth order microwave filters (Lowpass filter, Highpass filter, Bandpass filter) has been done. The analysis is done on a general frequency range that falls under microwave frequency range for all the three filters. The filters are used for different applications in their range. This paper covers the design analysis of the three filters on Electromagnetic...
In this paper, a tetraband microstrip patch antenna with defective ground structure (DGS) is proposed. DGS structure is used for improving the performance of microstrip patch antenna. The proposed structure shows the multi-frequency band operation and it covers S and C-band frequencies that are allocated by FCC for TV transmission and reception with open satellite communication. This antenna is designed...
This paper presents the analysis of compact triband microstrip patch antenna for radiolocation. The proposed structure shows the multi-frequency band operation and it covers C and X-band frequencies that are allocated for radiolocation application of radar. Firstly dual band frequency operation achieved by simple rectangular microstrip patch antenna with four rectangular slots and for getting triple...
A novel Tri-Band equal power divider with coupled line section is presented in this paper. Coupled lines section is used to achieve the necessary impedance transformation at three selected frequencies. The topology of the structure, different from conventional Wilkinson power divider, is the coupled lines instead of the transmission lines. The most important and unique method is used here in this...
In this paper a planar ultrawide band bandpass filter with dual notched behavior is proposed. This filter is designed using interdigital finger structure on planar configuration. This interdigital finger resonator is providing us the ultrawide band with two notches one at 5.65GHz and other is at 7.15GHz. As WLAN and few satellites communication systems interfere with UWB radio system. The filter is...
The drastic development in the field of wireless communications has resulted huge demand for voice and data communication in public domain but spectrum is the major concern and scarce resources which imposes a high cost on the data transmission. Our objective is to provide a quality communication to maximum number of users. The number of users supported by system can be increased by using more frequencies,...
Continuation of an active call is of prime importance in the cellular systems. In this paper a new approach has been designed to maximize handover success rate (HOSR) and voice quality for a GSM cellular network both related to customer satisfaction and performance of cellular operator which enhances revenue of the company. Initially, an effective frequency planning is done for GSM 1800 MHz BTS (base...
This paper presents a suspended microstrip technology to enhance the bandwidth of proposed ultra-wideband (UWB) bandpass filter. The earlier proposed filter suffer with the problem of low bandwidth, to eliminate this the concept of suspended microstrip technology is introduced to enhance the bandwidth. The proposed filter is designed by combining the step impedance lowpass filter (LPF) and the optimum...
This paper presents gain enhancement in square microstrip patch with U-slot using metallic rings. The proposed antenna design includes a metallic rings around the metal patch, initially at a distance of the one-quarter of the free space wavelength from the edges of patch and width of metallic ring is three times of one-sixteen of the free space wavelength. Using CST Microwave studio, the results of...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.