Results 71 to 80 of about 21,547 (105)

Compact Low-profile Unidirectional Antenna at 2.45GHz for Body-centric Communications

Progress in Electromagnetics Research Symposium, 2021
This paper presents a compact, low-profile unidirectional monopole antenna designed for 2.45 GHz wireless body-centric applications in the Industrial, Scientific and Medical (ISM) band. The antenna consists of a slotted-stepped monopole and a rectangular
M. S. Ellis, Philip Arthur, J. Nourinia, C. Ghobadi, A. Lalbakhsh, B. Mohammadi   +5 more
semanticscholar   +1 more source

Angular Stable Multiband Miniaturized Flexible Frequency Selective Surface

2024 32nd International Conference on Electrical Engineering (ICEE)
This paper presents a multiband miniaturized flexible frequency selective surface (FSS) with a high angularity. The proposed single-layer FSS tessellates with subwavelength hexagonal unit cells using miniaturized meandered arms with inclination angle of ...
Mozhgun Moazzamnia, J. Nourinia, Changiz. Ghobadi, Keyhan Hosseini, M. Karamirad, B. Mohammadi   +5 more
semanticscholar   +1 more source

Unidirectional Planar Monopole Antenna Using a Quasi-Radiator

IEEE Antennas and Wireless Propagation Letters, 2019
A compact wideband planar monopole antenna with unidirectional radiation properties is proposed in this letter. The measured results demonstrate that the antenna has an S11 < −10 dB bandwidth ranging from 2.3 to 6 GHz with an end-fire radiation pattern ...
M. S. Ellis, Abdul-Rahman Ahmed, J. J. Kponyo, J. Nourinia, C. Ghobadi, B. Mohammadi   +5 more
semanticscholar   +1 more source

Efficient NVIS HF Hinged Half-Loop Vehicular Antenna Using Modal Analysis

2024 32nd International Conference on Electrical Engineering (ICEE)
This paper presents an efficient near vertical incidence skywave (NVIS) hinged half-loop vehicular antenna for high-frequency (HF) applications. The antenna consists of two main loops that play as the main radiating elements and also four smaller loops ...
Nasser Haghighat, J. Nourinia, Changiz. Ghobadi, Keyhan Hosseini, F. Alizadeh, B. Mohammadi   +5 more
semanticscholar   +1 more source

‘Rhino Season is in exile, just like me’: An interview with Bahman Ghobadi

Anthropology of the Contemporary Middle East and Central Eurasia, 2013
Bahman Ghobadi, an Iranian Kurd, has had an important role in globalizing the category of ‘Kurdish’ on the international cinema stage. Having won the prestigious Camera d’Or award for his 2000 film A Time for Drunken Horses ( Zamani Barayi Mastiyi Asbha ) at the Cannes Film Festival, Ghobadi eschewed the advantageous international prestige of Iranian
openaire   +1 more source

Dual-Band Compact Metasurface With Polarization Rotation For Reflection-Transmission Modes

International Symposium on Telecommunications
This paper presents a compact dual-band metasurface with polarization rotation performance including U-shaped strips to rotate polarization of electromagnetic wave into its orthogonal counterpart in transmission and reflection modes.
Aysan Yousefpour, Changiz. Ghobadi, J. Nourinia, Keyhan Hosseini, M. Karamirad, B. Mohammadi   +5 more
semanticscholar   +1 more source

Wideband Compact Circularly Polarized Monopole Printed Antenna

International Symposium on Telecommunications
A compact wideband circularly polarized printed monopole antenna is designed here. This wide circular polarization (CP) performance is achieved by using a rectangular microstrip monopole and a defected ground plane.
M.S. Ellis, J. Nourinia, Changiz. Ghobadi, Keyhan Hosseini, F. Alizadeh, B. Mohammadi   +5 more
semanticscholar   +1 more source

High efficient multi‐bands circular polarization convertor based on spoof surface plasmon polariton

Microwave and optical technology letters (Print), 2019
In this paper, we propose to achieve a high efficient polarization convertor based on spoof surface plasmon polariton (SSPP). The proposed polarization convertor is realized by a dielectric blade with a metallic pattern on one side.
M. Karamirad, C. Ghobadi, J. Nourinia, B. Mohammadi   +3 more
semanticscholar   +1 more source

Simple circularly polarized planar monopole inverted T‐shaped antenna

Microwave and optical technology letters (Print), 2019
This article presents a novel planar monopole antenna with circular polarization. The 3‐dB axial ratio (AR) is achieved by: shifting a vertical monopole to the left edge of the substrate in conjunction with a laterally inverted L‐shaped ground plane ...
M. S. Ellis, Abdul-Rahman Ahmed, J. J. Kponyo, J. Nourinia, C. Ghobadi, B. Mohammadi   +5 more
semanticscholar   +1 more source

Compact broadband circularly polarized printed antenna with a shifted monopole and modified ground plane

Journal of Instrumentation, 2019
This paper presents a new and compact printed monopole antenna with broadband circular polarization (CP). The wide axial ratio bandwidth is achieved by placing and feeding a monopole on the side of an FR4 dielectric.
M. S. Ellis, Anas A. Ahmed, J. J. Kponyo, F. B. Effah, J. Nourinia, C. Ghobadi, B. Mohammadi   +6 more
semanticscholar   +1 more source