A survey of small, low-frequency antennas: Recent designs, practical challenges, and research directions

FT Dagefu, J Choi, BM Sadler… - IEEE Antennas and …, 2021 - ieeexplore.ieee.org
Robust, secure, low-power wireless communications and networking are needed to support
emerging applications in emergency and disaster response, robotics, autonomous vehicles …

A five-port integrated UWB and narrowband antennas system design for CR applications

A Nella, AS Gandhi - IEEE Transactions on Antennas and …, 2018 - ieeexplore.ieee.org
The main motive of this paper is to discuss a design of compact five-port integrated
ultrawideband (UWB) and narrowband (NB) antennas system for cognitive radio …

A Circular Slotted Planar Monopole UWB Antenna for RF Energy Harvesting Applications

G Srinivasu, N Anveshkumar… - … on Emerging Trends in …, 2020 - ieeexplore.ieee.org
Ultra Wide Band (UWB) is a buzzing word in recent times. This technology attracted
researchers due to its features like less power consumption, low cost, high speed data …

[PDF][PDF] Lumped equivalent models of narrowband antennas and isolation enhancement in a three antennas system

A Nella, A Gandhi - Radioengineering, 2018 - radioeng.cz
This paper initially discusses lumped equivalent models of narrowband (NB) antennas and
then presents a technique to enhance isolation between UWB and NB antennas of the three …

A novel integrated UWB sensing and 8-element MIMO communication cognitive radio antenna system

D Srikar, A Nella, R Mamidi, A Babu, S Das, S Lavadiya… - Electronics, 2023 - mdpi.com
In this article, a cognitive radio (CR) integrated antenna system, which has 1 sensing and 24
communication antennas, is proposed for better spectrum utilization efficiency. In the 24 …

Cognitive radio paradigm and recent trends of antenna systems in the UWB 3.1–10.6 GHz

N Anveshkumar, AS Gandhi, V Dhasarathan - Wireless Networks, 2020 - Springer
This article mainly focuses on the concept of cognitive radio paradigm in the ultra-wideband
3.1–10.6 GHz and recent trends of various antenna systems required for these applications …

A hybrid multi-port antenna system for cognitive radio

RK Parida, RK Mishra, NK Sahoo, A Muduli… - Progress In …, 2020 - jpier.org
This paper proposes a hybrid, compact, low profile, and multi-port antenna system for
Cognitive Radio (CR). This system consists of a CPW fed sensing UWB monopole (2-11 …

A circular planar monopole UWB antenna for cognitive radio applications

T Gayatri, N Anveshkumar, VK Sharma - 2020 IEEE-HYDCON, 2020 - ieeexplore.ieee.org
This paper discusses the design of a circular planar monopole UWB antenna for spectrum
sensing in the band 3.1-10.6 GHz, which is FCC proposed unlicensed UWB range. It is a key …

Twelve port MIMO antenna with polarisation diversity for cognitive radio applications

D Srikar, S Anuradha - Electronics Letters, 2019 - Wiley Online Library
In this letter, to overcome the drawbacks in reconfigurable antennas and maintain all the
advantages in planar antennas, a compact 12 port integrated UWB and narrow band …

A reconfigurable integrated 4‐port UWB and NB antenna system for cognitive radio application

A Nella, SK Vattiprolu, C Saha… - International Journal of …, 2022 - Wiley Online Library
A frequency reconfigurable 4‐port integrated ultra‐wideband and narrowband antenna
structure for cognitive radio application is reported in this article. The proposed structure …