Low-profile wireless connectors

• US 9,705,204 B2
• Filed: 10/22/2012
• Issued: 07/11/2017
• Est. Priority Date: 10/20/2011
• Status: Active Grant

• Current Assignee: Molex LLC (KOCH Industries Incorporated)
• Original Assignee: Keyssa, Inc.
• Inventors: McCormack, Gary D., Kyles, Ian A.
• Primary Examiner(s): Levi, Dameon E
• Assistant Examiner(s): Davis, Walter
• Application Number:
  US13/657,476
• Publication Number:
  US 20130106673A1
• Time in Patent Office: 1,723 Days
• Field of Search: 343700, 343893, 343702, 343846, 343700 MS, 343701, 375219
• CPC Class Codes: H01L 2223/6677 for antenna, e.g. antenna included within housing of semiconductor device antennas per se H01Q
• CPC Class Codes: H01L 2224/48091 Arched
• CPC Class Codes: H01L 2224/73265 Layer and wire connectors
• CPC Class Codes: H01L 23/495 Lead-frames or other flat leads H01L23/498 takes precedence; lead frame interconnections between components H01L23/52
• CPC Class Codes: H01L 23/4951 Chip-on-leads or leads-on-chip techniques, i.e. inner lead fingers being used as die pad
• CPC Class Codes: H01L 23/66 High-frequency adaptations
• CPC Class Codes: H01L 2924/00 Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
• CPC Class Codes: H01L 2924/00014 the subject-matter covered by the group, the symbol of which is combined with the symbol of this group, being disclosed without further technical details
• CPC Class Codes: H01L 2924/14 Integrated circuits
• CPC Class Codes: H01L 2924/15311 being a ball array, e.g. BGA
• CPC Class Codes: H01L 2924/3011 Impedance
• CPC Class Codes: H01Q 1/36 Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewithH01Q1/08, H01Q1/14 take precedence
• CPC Class Codes: H01Q 21/24 Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction circularly polarised patch antennas H01Q9/0428; circularly polarised horns H01Q13/0241; cross-polarised horns H01Q13/0258; polarisation converters H01Q15/242; cross-polarised rear feeds H01Q19/136; crossed polarisation dual antenna H01Q25/001
• CPC Class Codes: H04B 5/72 for local intradevice communication
• CPC Class Codes: H05K 1/0239 Signal transmission by AC coupling
• CPC Class Codes: H05K 1/0243 Printed circuits associated with mounted high frequency components
• CPC Class Codes: H05K 1/142 Arrangements of planar printed circuit boards in the same plane, e.g. auxiliary printed circuit insert mounted in a main printed circuit
• CPC Class Codes: H05K 2201/10098 Components for radio transmission, e.g. radio frequency identification [RFID] tag, printed or non-printed antennas
• CPC Class Codes: H05K 2201/10446 Mounted on an edge soldering edge mounted components H05K3/3405; edge terminals H05K2201/1034

Abstract

An electronic device may include a PCB having a substantially planar surface and one or more electronic components mounted thereon. A first EHF communication unit may be mounted on the substantially planar surface of the PCB. The first EHF communication unit may include a first planar die containing a first communication circuit, the first die extending along the substantially planar surface of the PCB in a die plane. A first antenna may be operatively connected to the first circuit by interconnecting conductors, the first antenna being configured to at least one of transmit and receive electromagnetic radiation along a plane of the substantially planar surface of the PCB. The first EHF communication unit may have an uppermost surface having a height from the substantially planar surface of the PCB, the first EHF communication unit height being determined by an uppermost surface of the die, the first antenna, and the interconnecting conductors.

Claims

1. An electronic device comprising:

a first printed circuit board (PCB), having a substantially planar surface and one or more electronic components mounted thereon;

a first extremely high frequency (EHF) communication unit mounted on the substantially planar surface of the first PCB, the first EHF communication unit comprising;

a first planar die extending along the substantially planar surface of the first PCB in a die plane;

a first communication circuit on the first planar die; and

a first antenna operatively connected to the first communication circuit by interconnecting conductors, the first antenna configured to transmit first linearly polarized electromagnetic radiation of a first polarization direction vector, the first linearly polarized electromagnetic radiation transmitted along a plane of the substantially planar surface of the first PCB;

wherein the first EHF communication unit has an uppermost surface having a height from the substantially planar surface of the first PCB, the first EHF communication unit height being determined by an uppermost surface of the die, the first antenna, and the interconnecting conductors; and

a second EHF communication unit mounted on the substantially planar surface of the first PCB, the second EHF communication unit comprising;

a second planar die extending along the substantially planar surface of the first PCB in a die plane;

a second communication circuit on the second planar die; and

a second antenna operatively connected to the second communication circuit by interconnecting conductors, the second antenna configured to receive second linearly polarized electromagnetic radiation of a second polarization direction vector that is oriented orthogonally to the first polarization direction vector, the second linearly polarized electromagnetic radiation received along the plane of the substantially planar surface of the first PCB.

2. The electronic device of claim 1, wherein an orientation of the first antenna is substantially orthogonal to an orientation of the second antenna.

3. The electronic device of claim 1, wherein an orientation of the first antenna is substantially parallel to an orientation of the second antenna.

4. The electronic device of claim 1, wherein the first EHF communication unit further comprises a lead frame and a ground plane operatively connected to the first communication circuit.

5. The electronic device of claim 4, wherein the first antenna is configured to operate at a predetermined wavelength and the lead frame includes a plurality of separate conductor elements arranged sufficiently close together to reflect electromagnetic energy having the predetermined wavelength.

6. The electronic device of claim 5, wherein the lead frame is disposed adjacent to the first communication circuit, and wherein the lead frame is configured to cause a transmitted electromagnetic energy to be greater in a region extending from the first antenna and generally away from the lead frame.

7. The electronic device of claim 4, wherein the first EHF communication unit further comprises an encapsulating material to encapsulate the die, the first communication circuit, the first antenna, the interconnecting conductors, the lead frame and the ground plane to comprise a circuit package, and the first EHF communication unit height is determined by an uppermost surface of the encapsulating material.

8. The electronic device of claim 1, wherein the first EHF communication unit height is less than or equal to a corresponding height for each of the one or more electronic components.

9. An electronic system comprising:

the electronic device of claim 1; and

a second electronic device, the second electronic device comprising;

a second PCB, having a substantially planar surface and one or more second electronic components mounted thereon;

a third EHF communication unit mounted on the substantially planar surface of the second PCB, the third EHF communication unit comprising;

a third planar die extending along the substantially planar surface of the second PCB in a die plane;

a third communication circuit on the third planar die; and

a third antenna operatively connected to the third communication circuit by interconnecting conductors, the third antenna configured to receive the first linearly polarized electromagnetic radiation of the first polarization direction vector, the first linearly polarized electromagnetic radiation received along a plane of the substantially planar surface of the second PCB; and

a fourth EHF communication unit mounted on the substantially planar surface of the second PCB, the fourth EHF communication unit comprising;

a fourth planar die extending along the substantially planar surface of the second PCB in a die plane;

a fourth communication circuit on the fourth planar die; and

a fourth antenna operatively connected to the fourth communication circuit by interconnecting conductors, the fourth antenna configured to transmit the second linearly polarized electromagnetic radiation of the second polarization direction vector, the second linearly polarized electromagnetic radiation transmitted along the plane of the substantially planar surface of the second PCB.

10. The electronic system of claim 9, wherein the first and second EHF communication units are disposed in a substantially parallel orientation on the first PCB;

and the third and fourth EHF communication units are disposed in a substantially parallel orientation on the second PCB.

11. The electronic system of claim 9, wherein the first and second EHF communication units are disposed in a substantially orthogonal orientation on the first PCB;

and the third and fourth EHF communication units are disposed in a substantially orthogonal orientation on the second PCB.

12. The electronic system of claim 9, wherein the first EHF communication unit and the third EHF communication unit are configured and aligned such that placing the first electronic device in close proximity to the second electronic device enables data to be communicated wirelessly and contactlessly between the first electronic device and the second electronic device.

13. The electronic system of claim 9, wherein the substantially planar surface of the first PCB and the substantially planar surface of the second PCB are substantially coplanar during use.

14. The electronic system of claim 9, wherein the substantially planar surface of the first PCB and the substantially planar surface of the second PCB are substantially parallel and non-coplanar during use.

15. The electronic device of claim 1,

wherein the first antenna configured to transmit the first linearly polarized electromagnetic radiation of the first polarization direction vector is the only antenna of the first communication unit, and

wherein the second antenna configured to receive the second linearly polarized electromagnetic radiation of the second polarization direction vector is the only antenna of the second communication unit.

16. The electronic device of claim 1, wherein the first circuit is to:

detect an other EHF communication unit when an other device that includes the other EHF communication unit is within a specified distance from the first EHF communication unit, and

verify that the other EHF communication unit is within the specified distance during an attempt by the first EHF communication unit to transmit electromagnetic radiation to the other EHF communication unit.

17. The electronic device of claim 1, wherein the first communication unit is proximate an edge of the first PCB and includes a first end including the first antennae, wherein the second communication unit is proximate the edge of the first PCB and includes a second end including the second antennae, wherein the first end and the second end face the edge of the first PCB.

18. The system of claim 9, wherein the first communication unit includes a first end including the first antennae, the second communication unit includes a second end including the second antennae, the third communication unit includes a third end including the third antennae, and the fourth communication unit includes a fourth end including the fourth antennae, the first end and the third end facing towards each other, and the second end and the fourth end facing towards each other.

19. The system of claim 9, wherein the first PCB includes a first edge proximate to the first communication unit and the second communication unit, and the second PCB includes a second edge proximate to the third communication unit and the fourth communication unit, the first edge facing the second edge during communications.

20. The electronic device of claim 1, wherein the first communication unit is a first IC package and the second communication unit is a second IC package.