Informatics Publishing Limited

Sushil Kumar Verma ¹, Garima Saini ¹

Affiliations
1 ECE Department, National Institute of Technical Teachers Training and Research, Chandigarh – 160019, Punjab, IN

Abstract

Objectives: In this paper design and analysis of novel metamaterial antenna for WLAN band applications is presented. Methods/Statistical Analysis: Proposed antenna operates at WLAN 802.11 band between 5 to 6 GHz range. The proposed antenna uses novel modified Square Split Ring Resonator (SSRR) shaped patch resulting in electrically smaller size and improved antenna performance in terms of gain and bandwidth. Findings: The overall size of antenna is 22.5 mm × 17.5 mm × 1 mm making it useful for small wireless devices. Simulated and measured results are presented and compared. Both the results are in good match with each other. Applications: Proposed antenna is suitable for its use in small and compact wireless devices such as USB dongles.

Keywords

ISM, Metamaterial, SSRR, WLAN.

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Sushil Kumar Verma ¹, D. P. Rai ², Lekh Ram Verma ³

Affiliations
1 Agricultural Technology Management Agencies, Kabirdham (C.G.), IN
2 Agricultural Extension Section, Mahatma Gandhi Chitrakoot Gramoday Vishwavidyalaya, Chitrakoot, Satna (M.P.), IN
3 Krishi Vigyan Kendra (I.G.K.V.), Jashpur (C.G.), IN

Abstract

The investigation was carried out in Dharsiwa block, Raipur district of Chhattisgarh state in 2010-2011, to assess the level of knowledge and extent of adoption of recommended practices of chilli production technology. From the selected block, twelve villages and from each village ten chilli growing farmers who were growing chilli for at least last two years were selected. Data were recorded through interview schedule and analyzed to use appropriate statistical methods. The study revealed that the maximum (38.33%) respondents had medium level of overall knowledge about chilli production technology. Whereas practice wise majority (55.00%) of the respondents had high level of knowledge regarding recommended field preparation, majority (52.50%) of the respondents had medium level of knowledge regarding irrigation management, and majority (50.83%) of the respondents had low level of knowledge regarding recommended weed management, while 43.33 per cent respondents had low extent of adoption about recommended chilli production technology. So far as practice wise extent of adoption is concerned, maximum (32.50%) respondents had high extent of adoption regarding recommended field preparation, majority (50.00%) of the respondents had medium extent of adoption regarding irrigation management and majority (59.17%) of the respondents had low level of extent of adoption regarding recommended weed management practices.

Keywords

Chilli Production, Knowledge, Adoption.

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