NDLI: Design of Orthogonal MIMO Handset Antennas Based on Characteristic Mode Manipulation at Frequency Bands Below 1 GHz

Content Provider	IEEE Xplore Digital Library
Author	Hui Li Miers, Z.T. Buon Kiong Lau
Copyright Year	1963
Abstract	Multi-antenna design in compact mobile handsets at frequency bands below 1 GHz is very challenging, since severe mutual coupling is commonly induced by simultaneous excitation of the chassis' fundamental dipole mode by more than one antenna element. To address this problem, a novel multi-antenna design approach is proposed herein to obtain efficient and uncorrelated antennas. By manipulating the chassis structure, more than one characteristic mode is enabled to resonate at frequencies below 1 GHz. With proper excitations for different characteristic modes, which are orthogonal to each other, well matched multi-antennas with low coupling and correlation are achieved. A chassis loaded with two T-shaped metal strips above its longer edges is taken as an example modification to illustrate the effectiveness of the proposed design approach at 900 MHz. This modification creates a new characteristic mode which resonates near 900 MHz. Afterward, two antenna feeds were designed to efficiently excite the chassis' fundamental dipole mode and the T-strip mode with very low correlation. The T-strip antenna covers LTE Band 8 (880-960 MHz), and the dipole mode antenna covers both LTE Band 5 (824-894 MHz) and LTE Band 8. The proposed dual-antenna design was found to outperform a reference design significantly, both with and without user interactions (i.e., one-hand and two-hand data grips). Practical aspects of mobile handset antennas are also investigated. The prototype was also fabricated and measured, and the measured results show reasonable agreements with the simulated results.
Sponsorship	IEEE Antennas and Propagation Society
Starting Page	2756
Ending Page	2766
Page Count	11
File Size	1893924
File Format	PDF
ISSN	0018926X
Volume Number	62
Issue Number	5
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Bandwidth Dipole antennas Resonant frequency Mobile antennas Couplings Strips mutual coupling Antenna array mobile antenna multiple-input multiple-output (MIMO) systems
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electrical and Electronic Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Design of Bandwidth-Enhanced and Multiband MIMO Antennas Using Characteristic Modes

Characteristic Mode Based Tradeoff Analysis of Antenna-Chassis Interactions for Multiple Antenna Terminals

Closely Mounted Mobile Handset MIMO Antenna for LTE 13 Band Application

MIMO antennas using controlled orthogonal characteristic modes by metal rims

Design of bezel antennas for multiband MIMO terminals using Characteristic Modes

A Two-Port Chassis-Mode MIMO Antenna

Design and evaluation of an antenna array for MIMO systems and handset wireless applications

Two-element particle isolator to reduce mutual coupling in rod-antenna arrays

Low mutual coupling tri-polarized MIMO slot antennas

Design of Orthogonal MIMO Handset Antennas Based on Characteristic Mode Manipulation at Frequency Bands Below 1 GHz

Similar Documents

Design of Bandwidth-Enhanced and Multiband MIMO Antennas Using Characteristic Modes

Characteristic Mode Based Tradeoff Analysis of Antenna-Chassis Interactions for Multiple Antenna Terminals

Closely Mounted Mobile Handset MIMO Antenna for LTE 13 Band Application

MIMO antennas using controlled orthogonal characteristic modes by metal rims

Design of bezel antennas for multiband MIMO terminals using Characteristic Modes

A Two-Port Chassis-Mode MIMO Antenna

Design and evaluation of an antenna array for MIMO systems and handset wireless applications

Two-element particle isolator to reduce mutual coupling in rod-antenna arrays

Low mutual coupling tri-polarized MIMO slot antennas

Design of Orthogonal MIMO Handset Antennas Based on Characteristic Mode Manipulation at Frequency Bands Below 1 GHz