Please wait, while we are loading the content...
Please wait, while we are loading the content...
Content Provider | IET Digital Library |
---|---|
Author | Shang, Junping Zhao, Wei Jiang Li, Xinrong Jia, Xiuhan |
Abstract | A dual-polarised, quadruple-ridged horn antenna with a coaxial feed operating over the frequency range of 75–500 MHz is presented. For the reduction of the antenna weight, a composite sandwich structure is used to build the antenna, which comprises solid aluminium and honeycomb materials. An adjustable shorting plate is put at the bottom of the antenna to prevent the occurrence of singularities created by standing waves. A Teflon plate is put at the centre position among the four symmetry ridges to mechanically support the huge antenna structure without breaking the symmetry of the ridges, leading to good electrical performance. Simulation and measured results are presented. |
Starting Page | 597 |
Ending Page | 598 |
Page Count | 2 |
ISSN | 00135194 |
Volume Number | 51 |
e-ISSN | 1350911X |
Issue Number | Issue 8, Apr (2015) |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/el/51/8 |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/el.2015.0317 |
Journal | Electronics Letters |
Publisher Date | 2015-03-30 |
Access Restriction | Open |
Rights Holder | © The Institution of Engineering and Technology |
Subject Keyword | Antenna Accessory Antenna Feeds Antenna Structure Antenna Weight Coaxial Feed Dual Polarisation Electromagnetic Wave Polarisation Frequency 75 MHz to 500 MHz Honeycomb Material Horn Antenna Quadruple Ridged Horn Antenna Sandwich Structure Single Antenna Solid Aluminium Teflon Plate UHF Antenna VHF Antenna |
Content Type | Text |
Resource Type | Article |
Subject | Electrical and Electronic Engineering |
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...
|