Dual polarized MIMO UWB system: a method and device thereof
a uwb system and dual-polar technology, applied in the field of microwave devices, can solve the problems of polarization loss when working close to body tissues, multi-path fading, destructive interference at the receiver side, etc., and achieve the effects of enhancing isolation, enhancing the axial ratio bandwidth of the uwb frequency range, and good impedance matching
Active Publication Date: 2022-05-19
K MALATHI +4
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Benefits of technology
The present invention aims to design a small radiator that can resonate over a wide range of frequencies with linear polarization characteristics. It also separates two sets of radiators to reduce interference between them. This helps to create a more efficient and reliable wireless communication system.
Problems solved by technology
Multipath fading is a fatal problem in wireless communication signals with different amplitudes and phases when combines often produce destructive interference at the receiver side.
They occur due to the diffraction and reflection from the interactive antennas and especially in WBAN application, due to scattering effects from the indoor environment and the movement of the human body parts such as arm and leg resulting in the polarization losses when works close to the body tissues.
Large size, complex geometry, poor isolation between radiators, and limited Axial ratio bandwidth coverage are major concerns in the MIMO diversity system.
Method used
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[0027]In the following detailed description, reference is made to the accompanying drawings that form a part hereof, and in which the specific embodiments that may be practised is shown by way of illustration. These embodiments are described in sufficient detail to enable those skilled in the art to practice the embodiments and it is to be understood that the logical, mechanical, and other changes may be made without departing from the scope of the embodiments. The following detailed description is therefore not to be taken in a limiting sense.
[0028]The various embodiments of the present invention provide a dual-polarized MIMO system contains a plurality of radiators with distinct polarization characteristics and with reduced interference between the radiators. The embodiments of the present invention provide a dual-polarized MIMO UWB system comprising of a Symmetric Heptagonal Monopole (SHM) radiating element coupled with the Stepped Co-Planar Waveguide (SCW) and an Asymmetric Ruby...
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The embodiments herein provide a dual-polarized MIMO ultra-wideband system comprising of a linear polarized radiator and circularly polarized radiator. A Symmetric Heptagonal Monopole (SHM) radiating element coupled with a Stepped Co-Planar Waveguide (SCW) provides an ultra-wide bandwidth with linear polarization. An Asymmetric Ruby Shaped Monopole Radiator (ARSM) aided along with a Modified Asymmetric Ground Plane (MAGP) provides the resonance for the entire ultra-wide bandwidth with circular polarization. Modified Asymmetric Ground Plane (MAGP) reduces the cross-polarization between the radiators. Good isolation is achieved using Rectangular Slots (RS) deployed between the radiators. The Symmetric Heptagonal Monopole (SHM) radiating element embedded with Stepped Coplanar Waveguide (SCW), and an Asymmetric Ruby Shaped Monopole (ARSM) radiating element placed above a Modified Asymmetric Ground Plane (MAGP) is configured on a single platform to realize the proposed dual-band UWB MIMO system.
Description
TECHNICAL FIELD[0001]The present invention is related to microwave devices and more particularly a dual-polarized MIMO UWB system suitable for integration into any electronic platforms such as medical imaging and any wireless communications.BACKGROUND OF THE INVENTION[0002]Research on MIMO (Multiple Input Multiple Output) technology has piled up because of its well-known advantages such as high data rate transmission, Spectral efficiency, and channel capacity. Multipath fading is a fatal problem in wireless communication signals with different amplitudes and phases when combines often produce destructive interference at the receiver side. They occur due to the diffraction and reflection from the interactive antennas and especially in WBAN application, due to scattering effects from the indoor environment and the movement of the human body parts such as arm and leg resulting in the polarization losses when works close to the body tissues. The best solution for overcoming the multipat...
Claims
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IPC IPC(8): H01Q9/40H04B7/0413H01Q1/48H01Q1/52
CPCH01Q9/40H01Q1/521H01Q1/48H04B7/0413H01Q5/25H01Q21/28H04B7/10
Inventor K, MALATHIP, SANDEEP KUMARM, GULAM NABI ALSATHS, PADMATHILAGAMM, VIKNESHWARAN
Owner K MALATHI