Dual-band frequency reconfigurable MIMO antenna with continuous tuning range

2017 ◽  
Author(s):  
A. Raza ◽  
R. Hussain ◽  
Farooq A. Tahir ◽  
Muhammad U. Khan ◽  
Mohammad S. Sharawi
Keyword(s):  
Tuning Range ◽  
Dual Band ◽  
Band Frequency ◽  
Mimo Antenna ◽  
Continuous Tuning

scholarly journals Design and Analysis of MIMO Dual Band Patch Antenna for 5G New Radio Applications in Mobile Terminals

2021 ◽  
Vol 9 (VI) ◽  
pp. 5446-5451
Author(s):  
Swati Dhandade
Keyword(s):  
Mobile Communications ◽  
Antenna Design ◽  
Dual Band ◽  
Slight Variation ◽  
Band Frequency ◽  
Mimo Antenna ◽  
High Isolation ◽  
New Radio ◽  
Compact Size ◽  
5G Mobile Communications

This paper presents a dual-band MIMO antenna design with compact size for 5G communication under 6 GHz band frequency. The metallic monopole stub structure is used to miniaturization of antenna. The L-shape monopole antenna is modified by adding semi-circular element in radiating structure of monopole to obtain dual-band resonance. The High isolation is achieved by employing T-shaped stub in ground plane.It has compact size is 45 mm × 25 mm × 1.6 mm3. The proposed Dual Band MIMO antenna has been design on FR4 material with ɛr = 4.4 with 1.6 thickness. The proposed antenna has 5G application in the bands of 2.5 GHz (2.34 GHz-2.62 GHz) and 3.5 GHz (3.20 GHz-5.20 GHz). The bandwidth of antenna getting 320MHz and 2500MHz at 2.5GHz and 3.5GHz respectively. The Isolation (S21) of proposed antenna is -31.2 dB at 2.5 GHz and -19.5 dB at 3.5 GHz. VSWR is less than 1.06 for both the bands. The designed dual band MIMO antenna covers 5G bands of 2.3-2.4GHz (n30/n40), 2.4-2.5GHz (n7/n38/n41/n90), and 3.2-5.2GHz (n77/n78/n80). The experimental and simulated results observed good matching except some slight variation. This proposed dual band MIMO antenna is suitable for 5G mobile Communications.

scholarly journals A Design A CRLH Antenna for MIMO Applications with Single and Dual Band

2021 ◽  
Author(s):  
Nada M. Khalil Al-Ani ◽  
Oras A. Shareef Al-Ani ◽  
Mahmood F. Mosleh ◽  
Read A. Abd-Alhameed
Keyword(s):  
Resonance Frequency ◽  
Single Band ◽  
Dual Band ◽  
Ground Structure ◽  
Band Frequency ◽  
Mimo Antenna ◽  
Resonance Frequencies

A design of MIMO antenna with four elements each one consists of two polarized ports is proposed in this research. The design of each elements based on ZORA which is applied to get the advantage of band frequency flexibility. The proposed MIMO antenna is operated as a single and dual band by adjusting a ground structure. The resonance frequency is 3.9 GHz for single band with bandwidth 1 GHz (3.4–4.4) GHz at -10 dB with −27 dB isolation. The resonance frequencies for dual band are 4.95 and 7 GHz with bandwidth 1.23 GHz (4.03–5.26) GHz and 410 MHz (6.88–7.29) GHz at −10 dB and less than −12 dB isolation for both bands. The obtained size of FR-4 PCB for single band is 77 × 150 mm2 while 82 × 150 mm2 for dual band which are suitable for future smartphone.  

Frequency reconfigurable dual-band MIMO antenna using pentagon slot resonator with improved bandwidth

2017 ◽  
Vol 10 (3) ◽  
pp. 383-389
Author(s):  
Deepali Borakhade ◽  
Sanjay Pokle
Keyword(s):  
Multiple Input Multiple Output ◽  
Dual Band ◽  
Pin Diode ◽  
Vehicular Communication ◽  
Pin Diodes ◽  
Band Frequency ◽  
Mimo Antenna ◽  
Slot Line ◽  
Multiple Input ◽  
Input Multiple Output

In this paper, multiple-input–multiple output (MIMO) antenna with dual-band frequency reconfiguration is presented. The proposed antenna consists of two symmetrical pentagon radiating elements. These radiating elements support bands of 1.5 GHz (GPS) and 2.4 GHz (Wi-Fi) frequency. The two PIN diodes are appropriately located on slot line in order to control the current flowing through the radiator. All simulated results are compared and confirmed with measured results. The antenna has VSWR ⩽1.8 and isolation of −28 dB. The advantage of this antenna is that bandwidth is increased by switching of PIN diode in the range from 80 MHz up to maximum 300 MHz. These characteristics demonstrate that proposed antenna is an attractive solution for a multimode application such as GPS, Wi-Fi routers, vehicular communication, etc. where wideband is required.

EBG Based Compact Design of Dual Band UWB MIMO Antenna Operating in Ku/K Band

2020 ◽  
Vol 10 (4) ◽  
pp. 268
Author(s):  
Subuh Pramono ◽  
Muhammad Hamka Ibrahim ◽  
Josaphat Tetuko Sri Sumantyo
Keyword(s):  
Dual Band ◽  
Mimo Antenna ◽  
Compact Design ◽  
K Band

A compact omnidirectional to directional frequency reconfigurable antenna for wireless sensor network applications

2021 ◽  
pp. 1-12
Author(s):  
Melvin Chamakalayil Jose ◽  
Radha Sankararajan ◽  
Balakrishnapillai Suseela Sreeja ◽  
Mohammed Gulam Nabi Alsath ◽  
Pratap Kumar
Keyword(s):  
Wireless Sensor Network ◽  
Sensor Network ◽  
Radiation Pattern ◽  
Antenna System ◽  
Wireless Sensor ◽  
Dual Band ◽  
Design Parameters ◽  
Pin Diodes ◽  
Band Frequency ◽  
Directional Radiation

Abstract In the proposed research paper, a novel compact, ultra-wideband electronically switchable dual-band omnidirectional to directional radiation pattern microstrip planar printed rectangular monopole antenna (PRMA) has been presented. The proposed antenna system has an optimum size of 0.26 λ0 × 0.28 λ0. A combination of radiators, reflectors, and two symmetrical grounds does place on the same layer of the rectangular microstrip PRMA. The frequency agility and the radiation pattern from omnidirectional to directional are achieved using two SMD PIN diodes (SMP1340-04LF). The directional radiation patterns with 180° phase shifts are achieved at the C-band frequency spectrum. The parametric study of the proposed antenna system was performed for different design parameters, and the antenna characteristics were analyzed. An antenna prototype is fabricated using the printed circuit board etching method by using RMI UV laser etching and cutting tools. The measurements of the proposed antenna are conducted in an anechoic chamber to validate the simulations. There are three states of operations due to two SMD PIN diodes being used in switching circuits. In state-I, the proposed antenna radiates at 6.185 GHz (5.275–6.6 75 GHz) in the Ф = 270° direction with a gain of 2.1 dBi, whereas in state-II, it radiates at 5.715 GHz (5.05–6.8 GHz) in the Ф = 90° direction with a gain of 2.1 dBi. In state-III, the antenna exhibits the X-band frequency with center frequency at 9.93 GHz (8.845–10.49 GHz), and the omnidirectional pattern offers a gain of 4.1 dBi. The features of the proposed antenna are suitable for high-speed wireless sensor network communication in industries such as chemical reactors in oil and gas and pharmaceuticals. It is also well suited for IoT and 5G-sub-6-GHz applications.

scholarly journals COMPACT DUAL BAND-NOTCHED UWB MIMO ANTENNA FOR USB DONGLE APPLICATION WITH PATTERN DIVERSITY CHARACTERISTICS

2018 ◽  
Vol 87 ◽  
pp. 87-96 ◽  
Author(s):  
Deepika Sipal ◽  
Mahesh Pandurang Abegaonkar ◽  
Shiban Kishen Koul
Keyword(s):  
Dual Band ◽  
Mimo Antenna ◽  
Pattern Diversity
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