Results 61 to 70 of about 347 (160)

Reconfigurable and Tunable Filtenna for Cognitive LTE Femtocell Base Stations

International Journal of Microwave Science and Technology, Volume 2016, Issue 1, 2016., 2016
A single‐port uniplanar antenna with a built‐in tunable filter is presented for operation in multiple LTE bands for cognitive femtocell applications. The antenna is based on a monopole microstrip patch fed by coplanar waveguide. The frequency reconfigurability is achieved by using two PIN diodes to couple or decouple a ring slot resonator filter from ...
Hamza Nachouane, Abdellah Najid, Abdelwahed Tribak, Fatima Riouch, Chien-Jen Wang   +4 more
wiley   +1 more source

Cognitive Radio Transceivers: RF, Spectrum Sensing, and Learning Algorithms Review

International Journal of Antennas and Propagation, Volume 2014, Issue 1, 2014., 2014
A cognitive transceiver is required to opportunistically use vacant spectrum resources licensed to primary users. Thus, it relies on a complete adaptive behavior composed of: reconfigurable radio frequency (RF) parts, enhanced spectrum sensing algorithms, and sophisticated machine learning techniques.
Lise Safatly, Mario Bkassiny, Mohammed Al-Husseini, Ali El-Hajj, Said E. El-Khamy   +4 more
wiley   +1 more source

Filtenna performance, simulated vs. measured.

, 2017
Filtenna performance, simulated vs. measured.
Mursyidul Idzam Sabran (3743386), Chee Yen Leow (2149831), Ping Jack Soh (3743389), Beng Wah Chew (2149828), Guy A. E. Vandenbosch (1759849), Sharul Kamal Abdul Rahim (2149825)   +5 more
core   +1 more source

Data-Driven Surrogate-Assisted Optimization of Metamaterial-Based Filtenna Using Deep Learning

, 2023
In this work, a computationally efficient method based on data-driven surrogate models is proposed for the design optimization procedure of a Frequency Selective Surface (FSS)-based filtering antenna (Filtenna).
Koziel, Slawomir, Tari, Ozlem, Aysu Belen, Slawomir Koziel, Peyman Mahouti, Belen, Aysu, BELEN, MEHMET ALİ, Ozlem Tari, Serdal Karahan, MAHOUTİ, Peyman, KARAHAN, SERDAL, Mehmet Ali Belen   +11 more
core   +1 more source

Frequency Tunable Filtenna Using Defected Ground Structure Filter in the Sub-6 GHz for Cognitive Radio Applications [PDF]

, 2022
In this paper, a new frequency tunable filtering-antenna (so-called filtenna) is inspired by a Defected Ground Structure (DGS) band-pass filter for the fifth generation picocell base stations. It is intended for use in Cognitive Radio (CR) communications
Tribak, Abdelwahed, Tizyi, Hafid, Bembarka, Aicha, Nachouane, Hamza, Setti, Larbi   +4 more
core   +1 more source

Recent Developments in Reconfigurable and Multiband Antenna Technology

International Journal of Antennas and Propagation, Volume 2013, Issue 1, 2013., 2013
A comparative analysis of various reconfigurable and multiband antenna concepts is presented. In order to satisfy the requirements for the advanced systems used in modern wireless and radar applications, different multiband and reconfigurable antennas have been proposed and investigated in the past years.
N. Haider, D. Caratelli, A. G. Yarovoy, Renato Cicchetti   +3 more
wiley   +1 more source

Design of a Two‐Element Antenna Array Using Substrate Integrated Waveguide Technique

International Journal of Microwave Science and Technology, Volume 2011, Issue 1, 2011., 2011
The design of a two‐element antenna array using the substrate integrated waveguide (SIW) technique and operating at 10 GHz is presented. The proposed antenna array consists of two SIW phase shifter sections with two SIW slot antennas. The phase shifting is achieved by changing the position of two inductive posts inserted inside each element of the ...
Kheireddine Sellal, Larbi Talbi, Chien-Jen Wang   +2 more
wiley   +1 more source

Compact and wideband filtenna for circularly polarised application [PDF]

IET Microwaves, Antennas & Propagation, 2020
A compact single M‐shaped probe fed circularly polarised filtenna (filtering antenna) without extra filtering circuit is presented in this study, in which three pair slots with different lengths are etched on its parasitic patch to produce radiation nulls at both band edges of its operating band.
Wenlei Wang, Guo Qing Luo, Huayan Jin, Kuikui Fan, Zhang Chen Hao   +4 more
openaire   +1 more source

Novel High-Gain Narrowband Waveguide-Fed Filtenna using Genetic Algorithm

, 2017
Filtenna is an antenna with filtering feature. There are many ways to design a filtenna. In this paper, a high-gain narrowband waveguide-fed aperture filtenna has been proposed and designed.
Ghorbaninejad, Habib, Mahdi Ghorbani, Habib Ghorbaninejad, Ghorbani, Mahdi   +3 more
core   +1 more source

Design of SIW‐Based Compact and High‐Gain Filtenna Array for W‐Band

International Journal of RF and Microwave Computer-Aided Engineering, Volume 2025, Issue 1, 2025.
This paper proposes a compact and high‐gain filtenna array based on substrate‐integrated waveguide (SIW) technology for the W‐band (75–110 GHz) high‐speed wireless communication systems and imaging/detection systems. By utilizing the high integration of SIW technology, the SIW filter, butterfly slot antenna array, and patch antenna array are vertically
Dong Gang, Zhou Ziyu, Meng Lingdong, Mohammad Rezwan Habib   +3 more
wiley   +1 more source