System and method for enabling automated testing of wireless data packet signal transceivers

• US 9,485,038 B2
• Filed: 03/06/2014
• Issued: 11/01/2016
• Est. Priority Date: 03/06/2014
• Status: Active Grant

• Current Assignee: LitePoint Corporation (Teradyne Incorporated)
• Original Assignee: LitePoint Corporation (Teradyne Incorporated)
• Inventors: Olgaard, Christian Volf
• Primary Examiner(s): PATEL, PARESH H
• Application Number:
  US14/199,607
• Publication Number:
  US 20150253357A1
• Time in Patent Office: 971 Days
• Field of Search: None
• US Class Current: 1/1
• CPC Class Codes: G01R 31/2822 of microwave or radiofrequency circuits of attenuation, gain, e.g. using network analyzers G01R27/28
• CPC Class Codes: G01R 31/3025 Wireless interface with the DUT
• CPC Class Codes: H04B 17/0085 using test signal generators
• CPC Class Codes: H04B 17/15 Performance testing
• CPC Class Codes: H04B 17/29 Performance testing

Abstract

A system and method for enabling automated testing of wireless data packet signal transceiver devices under test (DUTs). One or more DUTs are enclosed inside respective chambers within a shielded enclosure providing electromagnetic shielding for its interior region. Each DUT is powered by an internal power source and its radio frequency (RF) signal port is connected to an external RF signal interface at an outer wall of the shielded enclosure. An anchor at an outer wall of the shielded enclosure enables mechanical engagement with and physical displacement of the shielded enclosure, thereby allowing DUTs to be manipulated using pick and place automation devices for engagement with and connection to automated test equipment. Such test equipment can be assembled into vertically stacked RF signal test stations with which shielded DUT enclosures are engaged by physically mating their respective power and RF signal ports using the pick and place automation device.

Claims

1. An apparatus including a system for enabling automated testing of one or more wireless data packet signal transceiver devices under test (DUTs), including automated placement within a testing environment, comprising:

a shielded enclosure with an interior region containing one or more interior chambers and defined by a plurality of outer walls providing electromagnetic shielding for said interior region, wherein one or more of said plurality of outer walls include

an external power connection for conveying external electrical power,

an external radio frequency (RF) signal interface for conveying one or more RF signals for and from one or more DUTs, and

an anchor for enabling mechanical engagement with and physical displacement of said shielded enclosure;

a power source disposed within said shielded enclosure, coupled to said external power connection and responsive to said external electrical power by providing internal electrical power for said one or more DUTs;

one or more conductive electrical power paths disposed within said shielded enclosure, coupled to said power source and extending to respective ones of said one or more interior chambers for conveying said internal electrical power; and

one or more conductive RF signal paths disposed within said shielded enclosure, coupled to said external RF signal interface and extending to respective ones of said one or more interior chambers.

2. The apparatus of claim 1, wherein said one or more interior chambers comprises a plurality of interior chambers mutually shielded to substantially inhibit electromagnetic radiation originating in one chamber from being received in another chamber.

3. The apparatus of claim 1, wherein said one or more interior chambers comprises a plurality of interior chambers each one of which includes at least one wall with:

an internal power connection coupled to one of said plurality of conductive electrical power paths for conveying a portion of said internal electrical power to one of said plurality of DUTs; and

an internal RF signal interface coupled to one of said plurality of conductive RF signal paths for conveying at least one of said one or more RF signals from said one of said plurality of DUTs.

4. The apparatus of claim 1, wherein said one or more of said plurality of outer walls further include an external control signal interface for conveying one or more external control signals, and further comprising:

control circuitry disposed within said shielded enclosure, coupled to said external control signal interface and responsive to at least a portion of said one or more external control signals by providing one or more internal control signals for said one or more DUTs; and

one or more conductive control signal paths disposed within said shielded enclosure, coupled to said control circuitry and extending to respective ones of said one or more interior chambers for conveying said one or more internal control signals.

5. The apparatus of claim 4, wherein said one or more interior chambers comprises a plurality of interior chambers each one of which includes at least one wall with:

an internal power connection coupled to one of said plurality of conductive electrical power paths for conveying a portion of said internal electrical power to one of said plurality of DUTs;

an internal RF signal interface coupled to one of said plurality of conductive RF signal paths for conveying at least one of said one or more RF signals from said one of said plurality of DUTs; and

an internal control signal interface coupled to one of said plurality of conductive control signal paths for conveying at least one of said one or more internal control signals to said one of said plurality of DUTs.

6. The apparatus of claim 1, wherein said anchor is for enabling three-dimensional physical displacement of said shielded enclosure.

7. The apparatus of claim 1, further comprising a shelving structure including a plurality of shelves, wherein each one of said plurality of shelves accommodates at least one said shielded enclosure.

8. The apparatus of claim 7, further comprising a plurality of testers, wherein each one of said plurality of shelves further accommodates at least one of said plurality of testers and each one of said plurality of testers is disposed on a respective one of said plurality of shelves.

9. The apparatus of claim 8, wherein each one of said plurality of testers includes at least one signal interface configured to connect with said external RF signal interface.

10. The apparatus of claim 7, wherein said plurality of shelves is arranged as a vertical column of shelves above and below each other.