Design and development of rigid coaxial line based variable stub tuner
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Abhinav Jain
und
Rana Pratap Yadav
Abstract
This paper presents a novel design of rigid coaxial line based variable stub tuner. It incorporates controlled drive for the movement of shorting ring along the length of the stub inside the coaxial line. The ring is housed inside stub through linear slot over the coaxial conductor. Inbuilt slot at outer conductor of coaxial line introduces undesirable discontinuity which deteriorates the performance of the stub. It needs to be compensated to get the desirable performance of tuner. The effect of discontinuity has been analyzed using circuit modelling and compensated in design itself for the desired performance. The compensated tuner has been fabricated and tested where test results are found as return loss better than 25 dB and Voltage Standing Wave Ratio (VSWR) in between 1.1 and 1.9 in the frequency range of 80–850 MHz. The presented work is useful for the development of high power stub tuner in the range of High Frequency (HF), Very High Frequency (VHF) and Ultra High Frequency (UHF) which is an interest of wide spread applications in areas of communication, defence, satellite, radar, tokamak etc.
Funding source: Board of Research in Nuclear Sciences
Award Identifier / Grant number: 39/25/2015-BRNS/39003
Acknowledgement
We acknowledge Department of Atomic Energy-Board of Research in Nuclear Sciences (DAE-BRNS), Bhabha Atomic Research Center, Government of India for providing financial support of this research through Sanction no. 39/25/2015-BRNS/39003.
Author contribution: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
Research funding: We acknowledge Department of Atomic Energy-Board of Research in Nuclear Sciences (DAE-BRNS), Bhabha Atomic Research Center, Government of India for providing financial support of this research through Sanction no. 39/25/2015-BRNS/39003.
Conflict of interest statement: The authors declare no conflicts of interest regarding this article.
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© 2021 Walter de Gruyter GmbH, Berlin/Boston
Artikel in diesem Heft
- Frontmatter
- Research Articles
- Compact and novel coupled line microstrip bandpass filter based on stepped impedance resonators for millimetre-wave communications
- Design and development of rigid coaxial line based variable stub tuner
- Design of coaxial and waveguide couplers for helix TWT
- Experimental evaluation of line-of-sight multiple input multiple output (MIMO) transmission for sub-6 GHz carrier frequencies
- Bending and SAR analysis on UWB wearable MIMO antenna for on-arm WBAN applications
- Compact cross-shaped parasitic strip based multiple-input multiple-output (MIMO) dielectric resonator antenna for ultra-wideband (UWB) applications
- A compact single element dielectric resonator MIMO antenna with low mutual coupling
- Conical dielectric resonator antenna for terahertz applications
- A multi-band planar antenna for biomedical applications
- Design and analysis of pentaband annular microstrip antenna using multiport network modeling
Artikel in diesem Heft
- Frontmatter
- Research Articles
- Compact and novel coupled line microstrip bandpass filter based on stepped impedance resonators for millimetre-wave communications
- Design and development of rigid coaxial line based variable stub tuner
- Design of coaxial and waveguide couplers for helix TWT
- Experimental evaluation of line-of-sight multiple input multiple output (MIMO) transmission for sub-6 GHz carrier frequencies
- Bending and SAR analysis on UWB wearable MIMO antenna for on-arm WBAN applications
- Compact cross-shaped parasitic strip based multiple-input multiple-output (MIMO) dielectric resonator antenna for ultra-wideband (UWB) applications
- A compact single element dielectric resonator MIMO antenna with low mutual coupling
- Conical dielectric resonator antenna for terahertz applications
- A multi-band planar antenna for biomedical applications
- Design and analysis of pentaband annular microstrip antenna using multiport network modeling
