Please wait, while we are loading the content...
Please wait, while we are loading the content...
| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Bialkowski, M.E. Razali, A.R. Boldaji, A. |
| Copyright Year | 2010 |
| Description | Author affiliation: School of ITEE, The University of Queensland, Brisbane 4072, Australia (Bialkowski, M.E.; Razali, A.R.; Boldaji, A.) |
| Abstract | In the last decade, compact low-profile antennas featuring multiband operation have drawn a considerable interest from designers of portable wireless devices. The demand for these antennas stems from the fact that modern portable devices have to access an increased number of wireless services across the frequency spectrum from approximately 880MHz to 5850MHz. These services include GSM, GPS, DCS, PCS, UMTS, WLAN and WiMAX. There is a considerable challenge to design an embedded antenna, which would fulfill this multiband operation, using a limited space offered by modern portable RF transceivers. With respect to designing wideband antennas, which by default offer multiband performance, many of the published works have been devoted to the UWB frequency range of 3.1 to 10.6 GHz. The number of wideband antenna designs capable to operate in a lower microwave region to support portable wireless services steadily increase. In [1], a wideband antenna with an impedance bandwidth from 800MHz to 3.85GHz at 9.5dB return loss was proposed. However the designed CPW-fed antenna is 90mm × 110mm in size and thus cannot be used in typical portable devices such as cellular phone or personal assistant. An approach proposed in [2] to generate a wideband performance has a more practical value because the designed quarter elliptical resonator antenna is 20mm × 18mm and requires only a 50mm × 60mm ground plane to achieve operation between 1.9GHz to 3GHz at a 10dB return loss level. This paper is a logical continuation of the work described in [2]. It presents the design of a folded quarter-elliptical antenna that can cover the frequency bands between 850MHz to 6GHz at 6dB return loss or VSWR 3:1. |
| Starting Page | 1 |
| Ending Page | 4 |
| File Size | 530081 |
| Page Count | 4 |
| File Format | |
| ISBN | 9781424449675 |
| ISSN | 15223965 |
| DOI | 10.1109/APS.2010.5562306 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2010-07-11 |
| Publisher Place | Canada |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Wideband Broadband antennas Microwave antennas Wireless communication Antenna radiation patterns Antenna measurements |
| Content Type | Text |
| Resource Type | Article |
National Digital Library of India (NDLI) is a virtual repository of learning resources which is not just a repository with search/browse facilities but provides a host of services for the learner community. It is sponsored and mentored by Ministry of Education, Government of India, through its National Mission on Education through Information and Communication Technology (NMEICT). Filtered and federated searching is employed to facilitate focused searching so that learners can find the right resource with least effort and in minimum time. NDLI provides user group-specific services such as Examination Preparatory for School and College students and job aspirants. Services for Researchers and general learners are also provided. NDLI is designed to hold content of any language and provides interface support for 10 most widely used Indian languages. It is built to provide support for all academic levels including researchers and life-long learners, all disciplines, all popular forms of access devices and differently-abled learners. It is designed to enable people to learn and prepare from best practices from all over the world and to facilitate researchers to perform inter-linked exploration from multiple sources. It is developed, operated and maintained from Indian Institute of Technology Kharagpur.
Learn more about this project from here.
NDLI is a conglomeration of freely available or institutionally contributed or donated or publisher managed contents. Almost all these contents are hosted and accessed from respective sources. The responsibility for authenticity, relevance, completeness, accuracy, reliability and suitability of these contents rests with the respective organization and NDLI has no responsibility or liability for these. Every effort is made to keep the NDLI portal up and running smoothly unless there are some unavoidable technical issues.
Ministry of Education, through its National Mission on Education through Information and Communication Technology (NMEICT), has sponsored and funded the National Digital Library of India (NDLI) project.
| Sl. | Authority | Responsibilities | Communication Details |
|---|---|---|---|
| 1 | Ministry of Education (GoI), Department of Higher Education |
Sanctioning Authority | https://www.education.gov.in/ict-initiatives |
| 2 | Indian Institute of Technology Kharagpur | Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project | https://www.iitkgp.ac.in |
| 3 | National Digital Library of India Office, Indian Institute of Technology Kharagpur | The administrative and infrastructural headquarters of the project | Dr. B. Sutradhar bsutra@ndl.gov.in |
| 4 | Project PI / Joint PI | Principal Investigator and Joint Principal Investigators of the project |
Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon |
| 5 | Website/Portal (Helpdesk) | Queries regarding NDLI and its services | support@ndl.gov.in |
| 6 | Contents and Copyright Issues | Queries related to content curation and copyright issues | content@ndl.gov.in |
| 7 | National Digital Library of India Club (NDLI Club) | Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach | clubsupport@ndl.gov.in |
| 8 | Digital Preservation Centre (DPC) | Assistance with digitizing and archiving copyright-free printed books | dpc@ndl.gov.in |
| 9 | IDR Setup or Support | Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops | idr@ndl.gov.in |
|
Loading...
|