Now showing items 21-32 of 32
| Abstract: | The paper presents a compact planar Ultra Wide Band ¯lter employing folded stepped impedance resonators with series capacitors and dumb bell shaped defected ground structures. An interdigital quarter wavelength coupled line is used for achieving the band pass characteristics. The transmission zeros are produced by stepped impedance resonators. The ¯lter has steep roll o® rate and good attenuation in its lower and upper stop bands, contributed by the series capacitor and defected ground structures respectively. |
| Description: | Progress In Electromagnetics Research C, Vol. 49, 123{131, 2014 |
| URI: | http://dyuthi.cusat.ac.in/purl/4340 |
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| High Selectivit ... Wide Band Applications.pdf | (423.9Kb) |
| Abstract: | A novel antenna configuration comprised of two circular micro strip antennas (CMAs) resonating in the TMtt and TM2, modes, producing radiation characteristics suitable for a mobile telephone handset, is presented. The antennas operating at the same frequency are placed back to back with a separation comparable to the thickness of a typical handset. The radiation pattern consists of a region of reduced radiation intensity, which minimizes the radiation hazards to the user |
| URI: | http://dyuthi.cusat.ac.in/purl/1369 |
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| Microstrip ante ... uced radiation hazards.PDF | (1.152Mb) |
| Abstract: | A novel antenna configuration comprised of two circular microstrip antennas (CMAs) resonating in the TMtt and TM2, modes, producing radiation characteristics suitable for a mobile telephone handset, is presented. The antennas operating at the same frequency are placed back to back with a separation comparable to the thickness of a typical handset. The radiation pattern consists of a region of reduced radiation intensity, which minimizes the radiation hazards to the user |
| Description: | Microwave and Optical Technology Letters,VOL 23,issue 6.pp 370-372 |
| URI: | http://dyuthi.cusat.ac.in/purl/4329 |
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| Microstrip Ante ... uced Radiation Hazards.PDF | (1.152Mb) |
| Abstract: | compact multihand planar octagonal-shaped microstrip antenna simultaneously suitable for mobile communication and blue tooth application is presented. The antenna provides sufficient isolation benveen the two operating bands and an area reduction of -29 % with respect to a circular patch operating in the same band |
| URI: | http://dyuthi.cusat.ac.in/purl/1384 |
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| A NEW MICROSTRI ... BLUETOOTH APPLICATIONS.PDF | (1.532Mb) |
| Abstract: | In this paper, a multiband antenna using a novel fractal design is presented. The antenna structure is formed by inscribing a hexagonal slot within a circle. This base structure is then scaled and arranged within the hexagon along its sides without touching the outer structure. The proposed CPW fed, low profile antenna offers good performance in the 1.65 – 2.59 GHz, 4.16 – 4.52 GHz and 5.54 – 6.42 GHz bands and is suitable for GSM 1800/1900, Bluetooth, IMT advanced systems and upper WLAN applications. The antenna has been fabricated on a substrate of height 1.6 mm and εr = 4.4 and simulation and experimental results are found to be in good agreement |
| Description: | RADIOENGINEERING,vol 22,issue 4,pp 1263 |
| URI: | http://dyuthi.cusat.ac.in/purl/4330 |
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| A Novel Planar ... Multiband Applications.pdf | (3.535Mb) |
| Abstract: | A dual port dual polarized octagonal microstrip patch antenna suitable for dual band applications is discussed theoretically and experimentally. The antenna exhibits good impedance bandwidth, gain and broad radiation patterns. Parameters predicted by the Conformal Finite Difference Time Domain algorithm show good agreement with the simulated results and experimental observations |
| Description: | Proc. XXVIII URSI General Assembly |
| URI: | http://dyuthi.cusat.ac.in/purl/4337 |
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| Octagonal Micro ... Dual Band Applications.pdf | (878.3Kb) |
| Abstract: | The paper proposes an octagon shaped Microstrip Patch Antenna suitable for dual band applications. The striking features of this compact, planar antenna are sufficient isolation between the two operating bands and an area reduction of - 29% in comparison to a conventional circular patch antenna operating in the same band |
| Description: | Antennas and Propagation Society International Symposium, 2002. IEEE |
| URI: | http://dyuthi.cusat.ac.in/purl/4328 |
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| Octagon Shaped ... Dual Band Applications.pdf | (161.2Kb) |
| Abstract: | An electrically small, broadband-modified, truncated ground metamaterial EZ antenna is presented. This, a modified EZ antenna system, achieves a larger bandwidth of the order of 650 MHz by adjusting the metamaterial-inspired meandered ground element fed by a top loaded monopole. The design is devoid of the large ground planes and the external parasitic elements used in conventional designs for achieving proper impedance matching characteristics. The antenna requires a small foot print of kg/5 3 kg/10, where kg is the guided wavelength corresponding to the lowest frequency of operation, when printed on a substrate of dielectric constant 4.4 and thickness 1.6 mm. The antenna offers a 2:1 VSWR bandwidth from 750 MHz to 1.4 GHz, which covers CDMA, GSM, and ISM bands |
| Description: | MICROWAVE AND OPTICAL TECHNOLOGY LETTERS / Vol. 56, No. 3, March 2014 |
| URI: | http://dyuthi.cusat.ac.in/purl/4339 |
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| A Planar Compac ... ired Broadband Antenna.pdf | (567.7Kb) |
| Abstract: | A broadband rectangular tnicrostrip antenna utilizing an electromagnetically coupled L-strip feed is presented. Experimental study shows a 2:1 VSWR bandwidth of a 10% and excellent cross-polarization performance with a radiation coverage almost as same as that of the rectangular microstrip antenna fed by conventional methods. The variation of bandwidth for different feed parameters is also studied. The proposed antenna is suitable for broadband communications |
| URI: | http://dyuthi.cusat.ac.in/purl/1385 |
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| PLANAR L-STRIP ... AND MICROSTRIP ANTENNA.PDF | (716.7Kb) |
| Abstract: | A compact coplanar waveguide-fed (CPW) monopole antenna for ultra-wideband wireless communication is presented. The proposed antenna comprises of a CPW-fed beveled rectangular patch with a modified slotted ground. The overall size of the antenna is 30 mm 27 mm 1.6 mm. The lower edge of the band is attained by properly decoupling the resonant frequencies due to the extended ground plane and the beveled rectangular patch of the antenna. The upper edge of the radiating band is enhanced by beveling the ground plane corners near the feed point. Experimental results show that the designed antenna operates in the 2.7–12 GHz band, for S11 10 dB with a gain of 2.7–5 dBi. Both the frequency domain and time domain characteristics of the antenna are investigated using antenna transfer function. It is observed that the antenna exhibits identical radiation patterns and reasonable transient characteristics over the entire operating band |
| Description: | International Journal of RF and Microwave Computer‐Aided Engineering,VOL 22,issue 5,pp 594-602 |
| URI: | http://dyuthi.cusat.ac.in/purl/4331 |
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| Planar UWB Ante ... d Slotted Ground Plane.pdf | (963.2Kb) |
| Abstract: | Experimental investigations on Microstrip line excited Dielectric Resonator Antenna configurations suitable for Mobile Communication applications are reported. High permittivity (εrd = 48) resonator samples with different aspect ratios are employed for the study. Theoretical analysis performed using FDTD method is also presented. |
| Description: | XXVIII URSI GA New Delhi |
| URI: | http://dyuthi.cusat.ac.in/purl/4327 |
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| Rectangular Die ... unication Applications.pdf | (440.1Kb) |
| Abstract: | A slot line fed planar dipole antenna with a parasitic strip for wide band applications is presented. The presented antenna offers a 2:1 VSWR bandwidth from 1.66 to 2.71 GHz covering the DCS/ PCS/UMTS and IEEE 802.11b/g bands with a gain better than 6.5 dBi. The uniplanar design, simple feeding, and high gain make it a versatile antenna for wireless applications |
| Description: | MICROWAVE AND OPTICAL TECHNOLOGY LETTERS / Vol. 51, No. 3, March 2009 |
| URI: | http://dyuthi.cusat.ac.in/purl/4321 |
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| Slot Line Fed D ... Wide Band Applications.pdf | (416.4Kb) |
Now showing items 21-32 of 32
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