IES991113A2 - A radio receiver - Google Patents

A radio receiver

Info

Publication number
IES991113A2
IES991113A2 IE19991113A IES991113A IES991113A2 IE S991113 A2 IES991113 A2 IE S991113A2 IE 19991113 A IE19991113 A IE 19991113A IE S991113 A IES991113 A IE S991113A IE S991113 A2 IES991113 A2 IE S991113A2
Authority
IE
Ireland
Prior art keywords
antenna
circuit board
printed circuit
shielding
radio
Prior art date
Application number
IE19991113A
Inventor
Patrick John Lyons
Original Assignee
Hi Key Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hi Key Ltd filed Critical Hi Key Ltd
Priority to IE19991113A priority Critical patent/IES991113A2/en
Publication of IES991113A2 publication Critical patent/IES991113A2/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/27—Adaptation for use in or on movable bodies
    • H01Q1/32—Adaptation for use in or on road or rail vehicles
    • H01Q1/3208—Adaptation for use in or on road or rail vehicles characterised by the application wherein the antenna is used
    • H01Q1/3233—Adaptation for use in or on road or rail vehicles characterised by the application wherein the antenna is used particular used as part of a sensor or in a security system, e.g. for automotive radar, navigation systems
    • H01Q1/3241—Adaptation for use in or on road or rail vehicles characterised by the application wherein the antenna is used particular used as part of a sensor or in a security system, e.g. for automotive radar, navigation systems particular used in keyless entry systems
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/48—Earthing means; Earth screens; Counterpoises
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K9/00—Screening of apparatus or components against electric or magnetic fields
    • H05K9/0007—Casings
    • H05K9/002—Casings with localised screening
    • H05K9/0022—Casings with localised screening of components mounted on printed circuit boards [PCB]
    • H05K9/0024—Shield cases mounted on a PCB, e.g. cans or caps or conformal shields
    • H05K9/0026—Shield cases mounted on a PCB, e.g. cans or caps or conformal shields integrally formed from metal sheet
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/16—Printed circuits incorporating printed electric components, e.g. printed resistor, capacitor, inductor

Abstract

A radio receiver (1) for a security system of a motor vehicle comprises a printed circuit board (2) having respective top and bottom sides (3,4). A radio receiving circuit is located on the top side (3) of the printed circuit board (2). An antenna (8) is patterned on the top side (3) and connected to the radio receiving circuit. An electrically conductive housing (10) secured to the printed circuit board (2) is electrically connected to a ground plane on the bottom side (4) of the printed circuit board (2) for shielding the radio receiving circuit from interference and other emissions. An electrically conductive connecting lug (18) extends from the housing (10) for securing the housing (10) directly to the body of the vehicle for ensuring good grounding of the housing (10) and the ground plane. The housing (10) is located relatively closely to the antenna (8) for acting as a ground reference for the antenna (8). <Figure 1>

Description

A radio receiver (1) for a security system of a motor vehicle comprises a printed circuit board (2) having respective top and bottom sides (3,4). A radio receiving circuit is located on the top side (3) of the printed circuit board (2). An antenna (8) is patterned on the top side (3) and connected to the radio receiving circuit. An electrically conductive housing (10) secured to the printed circuit board (2) is electrically connected to a ground plane on the bottom side (4) of the printed circuit board (2) for shielding the radio receiving circuit from interference and other emissions. An electrically conductive connecting lug (18) extends from the housing (10) for securing the housing (10) directly to the body of the vehicle for ensuring good grounding of the housing (10) and the ground plane. The housing (10) is located relatively closely to the antenna (8) for acting as a ground reference for the antenna (8). .
IE 991113

Claims (5)

1. A radio receiver for a security system of a motor vehicle, the radio receiver comprising a printed circuit board having a plurality of electronic components mounted thereon connected by electrically conductive tracks printed thereon forming 5 a radio receiving circuit, and an antenna formed by an electrically conductive track on the printed circuit board for receiving radio frequency signals, the antenna being electrically connected to the radio receiving circuit, an electrically conductive shielding means located on the printed circuit board for shielding the components thereon, and an electrically conductive connecting means extending directly from the 10 shielding means for connecting the shielding means to ground, the connecting means being adapted for connecting to a grounded portion of the vehicle.
2. A radio receiver as claimed in Claim 1 in which the connecting means is adapted for connecting directly to the body of the vehicle.
3. A radio receiver as claimed in Claim 1 or 2 in which the connecting means comprises a ground lug extending from the shielding means.
4. A radio receiveras claimed in any preceding claim in which the shielding 20 means is located relative to the antenna such that a part of the shielding means acts to form a ground referencing means for the antenna.
5. A radio receiver substantially as described herein with reference to and as illustrated in Figs. 1 to 4 or Fig. 5 of the accompanying drawings. F.F. GORMAN & CO.
IE19991113A 1998-12-22 1999-12-17 A radio receiver IES991113A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
IE19991113A IES991113A2 (en) 1998-12-22 1999-12-17 A radio receiver

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
IE981093 1998-12-22
IE990724 1999-08-25
IE19991113A IES991113A2 (en) 1998-12-22 1999-12-17 A radio receiver

Publications (1)

Publication Number Publication Date
IES991113A2 true IES991113A2 (en) 2000-09-06

Family

ID=26320231

Family Applications (1)

Application Number Title Priority Date Filing Date
IE19991113A IES991113A2 (en) 1998-12-22 1999-12-17 A radio receiver

Country Status (2)

Country Link
GB (1) GB2345209B (en)
IE (1) IES991113A2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002171111A (en) * 2000-12-04 2002-06-14 Anten Corp Portable radio and antenna for it
US20070236404A1 (en) * 2006-04-05 2007-10-11 Snider Chris R Integrated GPS antenna ground plane and telematics module
DE102012213520A1 (en) * 2012-08-01 2014-02-06 Robert Bosch Gmbh Housing for circuit board of electrical appliance, particularly automotive radio, comprises antenna cavity for antenna area of circuit board, where rear wall of antenna cavity is configured to electromagnetically shield central area
CN104655887B (en) * 2015-02-16 2017-11-21 四川中测辐射科技有限公司 Electrometer sealing system
DE102016108867A1 (en) 2016-05-13 2017-11-16 Kathrein Werke Kg Shield housing for HF applications

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9114720D0 (en) * 1991-07-08 1991-08-28 Electronic Advanced Research L Radio receiving circuits
FR2724263B1 (en) * 1994-09-05 1996-11-08 Valeo Electronique ANTENNA USED FOR TRANSMITTING OR RECEIVING A RADIO FREQUENCY SIGNAL, A REMOTE TRANSMITTER AND RECEIVER AND A REMOTE CONTROL SYSTEM FOR VEHICLE INCORPORATING THE SAME
US5608611A (en) * 1995-10-03 1997-03-04 United Technologies Automotive, Inc./Ford Motor Company Vehicle electronic module with integral mounting and grounding means

Also Published As

Publication number Publication date
GB2345209A (en) 2000-06-28
GB2345209B (en) 2003-07-02
GB9930192D0 (en) 2000-02-09
IE991114A1 (en) 2000-09-06

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Legal Events

Date Code Title Description
FD4E Short term patents deemed void under section 64