Antenna isolation using grounded microwave elements
First Claim
Patent Images
1. An electronic communication device comprising:
- at least one antenna; and
an RF microwave element electrically connected to a ground plane of said at least one antenna optimized for improving an isolation from electro-magnetically coupled currents between said at least one antenna and other RF components of said electronic communication device in said ground plane, wherein at least a surface of a portion of said RF microwave element is not located on or intersects a surface of a main ground plane which is a part of a printed wiring board of said electronic communication device, and whereinsaid ground plane of said at least one antenna is;
said main ground plane, or electrically isolated from said printed wiring board comprising said main ground plane.
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Abstract
This invention describes a method for improving antenna isolation in an electronic communication device using grounded RF microwave elements and patterns (structures). According to embodiments of the present invention, the RF microwave element can be implemented as a short-circuited section of a quarter-wavelength long transmission line (such as a stripline), or the RF microwave element can contain a metallic coupler and two thin striplines with different lengths, or the RF microwave element can be implemented using a balun concept.
49 Citations
27 Claims
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1. An electronic communication device comprising:
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at least one antenna; and an RF microwave element electrically connected to a ground plane of said at least one antenna optimized for improving an isolation from electro-magnetically coupled currents between said at least one antenna and other RF components of said electronic communication device in said ground plane, wherein at least a surface of a portion of said RF microwave element is not located on or intersects a surface of a main ground plane which is a part of a printed wiring board of said electronic communication device, and wherein said ground plane of said at least one antenna is;
said main ground plane, or electrically isolated from said printed wiring board comprising said main ground plane. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method, comprising:
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placing an RF microwave element electrically connected to a ground plane of at least one antenna optimized for improving an isolation from electro-magnetically coupled currents in a ground plane between said at least one antenna and other RF elements in an electronic communication device in said ground plane, wherein at least a surface of a portion of said RF microwave element is not located on or intersects a surface of a main ground plane which is a part of a printed wiring board of said electronic communication device, and wherein said ground plane of said at least one antenna is;
said main ground plane, or electrically isolated from said printed wiring board comprising said main ground plane. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. An electronic communication device comprising:
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receiving/transmitting means; and RF means, electrically connected to a ground plane of said receiving/transmitting means and optimized for improving an isolation from electro-magnetically coupled currents between said receiving/transmitting means and other RF components of said electronic communication device in said ground plane, wherein at least a surface of a portion of said RF means is not located on or intersects a surface of a main ground plane which is a part of a printed wiring board of said electronic communication device, and wherein said ground plane of said receiving/transmitting means is;
said main ground plane, or electrically isolated from said printed wiring board comprising said main ground plane. - View Dependent Claims (27)
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Specification