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Keyword: Varactor diode
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7 Pages, 894 KB Download PDF

Designs of Frequency Reconfigurable Planar Bow-tie Antenna Integrated with PIN, varactor diodes and Parasitic Elements

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 4, Page # 320–326, 2021; DOI: 10.25046/aj060435
Abstract:

This paper presents the designs and the simulations of proposed structures of electronically frequency reconfigurable planar bow-tie antenna. In the first part, a modified wide band self-complementary bow-tie antenna is designed and implemented. In the second part, varactor and PIN diodes are integrated in top side to adjust electronically the modified structure of bow-tie antenna…

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(This article belongs to the SP11 (Special Issue on Innovation in Computing, Engineering Science & Technology 2021) & Section Electronic Engineering (EEE))
Open AccessArticle
6 Pages, 2,411 KB Download PDF

Design and Analysis of Frequency Reconfigurable Antenna Embedding Varactor Diodes

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 6, Page # 371–376, 2019; DOI: 10.25046/aj040647
Abstract:

In this paper, we present a broadband frequency tunable antenna embedding varactor diodes. The reference antenna structure is a square antenna of patch dimensions [39,2 × 39,2] mm², operating at a single resonance frequency 2.45GHz. The recommended procedure to achieve the frequency shifting is to etch rectangular slots on the patch and to embed two…

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(This article belongs to Section Telecommunications (TEL))
Open AccessArticle
7 Pages, 952 KB Download PDF

Phase-Adjusted Microwave Oscillators Based on a Discriminator

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 3, Page # 319–325, 2021; DOI: 10.25046/aj060336
Abstract:

At the conference “System timing, shaping and signal processing” “SYNCHRONO-2020” there was report: “Simulation of steady state microwave oscillator with dielectric resonator” and “Microwave generators, driven by voltage-based microassemblies with dielectric resonators”. An algorithm for calculating a generator with an open dielectric resonator is described. Based on the DesignLab 8.0 simulation environment, the analysis of…

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(This article belongs to Section Electronic Engineering (EEE))
Open AccessArticle
9 Pages, 1,256 KB Download PDF

An Experimental Investigation of Reconfigurable UWB Modified Octagonal Microstrip Monopole Patch Antenna with Switchable and Tunable Band-Notched Characteristic

Advances in Science, Technology and Engineering Systems Journal, Volume 3, Issue 5, Page # 207–215, 2018; DOI: 10.25046/aj030525
Abstract:

An experimental investigation of reconfigurable ultra-wideband (UWB) modified octagonal microstrip monopole patch antenna with switchable and tunable band-notched characteristic is presented in this paper. Notched-bands are obtained by connecting or disconnecting the open shunt stubs. The switching is achieved by using PIN diodes. Additionally, more notch-bands are created by adding additional stubs to the original…

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(This article belongs to the SP5 (Special Issue on Multidisciplinary Sciences and Engineering 2018) & Section Telecommunications (TEL))

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