Electronics card insitu testing apparatus and method utilizing unintended RF emission features

Patent metadata

Field	Value
Publication number	US-11069952-B2
Application number	US-201815963325-A
Country	US
Kind code	B2
Filing date	Apr 26, 2018
Priority date	Apr 26, 2017
Publication date	Jul 20, 2021
Grant date	Jul 20, 2021

Abstract

A diagnostic apparatus for analysis, testing, inspecting and/or screening an integrated and assembled electrically powered equipment rack and its populated cards and devices for measurement of degree of device aging, improper operation, degradation, condition, and/or Remaining Useful Life (RUL). The device includes an antenna card with a detachably attachable antenna module that can be positioned at a distance from the electrically devices under test and a signal receiver or sensor for examining a signal from the electrically powered device, but especially applied to rackmount supported electronics and/or chassis based electronics. The receiver or sensor collects unintended and/or intended RF energy components emitted by the electrically powered device and performs the above analysis in a response to the acquired signal input while the electrically powered device is active or powered.

First claim

What is claimed is:

1. An antenna card, comprising:
an antenna module, comprising:
an antenna configured to capture emissions of electromagnetic energy in a radio frequency (RF) range,
an antenna substrate, said antenna being mounted on said antenna substrate, and
an antenna connection member;

a card substrate; and
a means for detachably positioning said antenna module in a preselected zone on said card substrate.

2. The antenna card of claim 1 , wherein said means comprises an orthogonal array of first features in or on said card substrate and two or more second features in or on said antenna substrate, said two or more second features configured to mate with any two or more first features within said orthogonal array of first features during use of said antenna card.

3. The antenna card of claim 2 , wherein one feature from said first and second features is an aperture and an opposite one feature from said first and second features is a pin sized and shaped to be received within said aperture.

4. The antenna card of claim 1 , wherein said antenna substrate or said card substrate comprises a printed circuit board.

5. The antenna card of claim 1 , further comprising a backplane connector mounted on said card substrate, said backplane connector configured to secure said antenna card within a chassis slot.

6. The antenna card of claim 1 , further comprising an RF processing member mounted on said card substrate and being operatively coupled to said antenna, said RF processing member comprising any one of a bandpass filter, a low noise amplifier (LNA), a highpass filter, a lowpass filter, a surge suppressor, an impedance matcher, and a splitter/combiner.

7. The antenna card of claim 1 , wherein said antenna comprises any one of a loop antenna, a fractal antenna, a dipole antenna, a PIFA antenna, an irregular antenna, and an antenna array.

8. The antenna card of claim 1 , further comprising an interface connection member on said card substrate and a connection between said antenna connection member and said interface connection member.

9. The antenna card of claim 1 , wherein said means comprises any one of an adhesive, a magnet and a hook and loop fastener.

10. The antenna card of claim 1 , wherein said means comprises linear positioners that move said antenna module in one or more linear directions.

11. The antenna card of claim 1 , further comprising a void or a cutout in said card substrate.

12. The antenna card of claim 1 , wherein said antenna connection member comprises an RF connector.

13. The antenna card of claim 1 , wherein said antenna connection member comprises an RF connector and an RF cable having one end thereof coupled to said RF connector and another end thereof coupled to a connection on said card substrate.

14. The antenna card of claim 1 , wherein said antenna connection member comprises a connector on said card substrate and a mating connector on said antenna substrate.

15. The antenna card of claim 1 , further comprising a second antenna module, said second antenna module comprising a second antenna configured to capture emissions of electromagnetic energy in a radio frequency (RF) range, a second antenna substrate, said second antenna being mounted on said second antenna substrate, and a connection between said second antenna module and an RF connector.

16. A circuit card assembly, comprising:
a chassis with card slots;
printed circuit board (PCB) assemblies inserted into some card slots;
one or more antenna cards inserted into one or more remaining card slots, each of said one or more remaining card slots comprises:
an antenna module, comprising:
an antenna configured to capture emissions of electromagnetic energy in a radio frequency (RF) range,
an antenna substrate, said antenna being mounted on said antenna substrate, and
an antenna connection member;

a card substrate; and
a means for detachably positioning said antenna module in a preselected zone on said card substrate.

17. A control apparatus, comprising:
an enclosure with card slots;
an RF emissions processing module inserted into one slot from said slots, said RF emissions processing module comprising:
a substrate,
a first antenna disposed on said substrate, and
a controller disposed on said substrate and operatively coupled to said first antenna;

a printed circuit board (PCB) assembly inserted into another slot from said slots, said PCB assembly comprising:
one or more antenna cards, each of said one or more antenna cards comprising:
an antenna module, comprising:
a second antenna configured to capture emissions of electromagnetic energy in a radio frequency (RF) range,
a second antenna substrate, said second antenna being mounted on said second antenna substrate, and
an antenna connection member;

a card substrate; and
a means for detachably positioning said antenna module in a preselected zone on said card substrate;

said second antenna being connected to said controller.

18. The control apparatus of claim 17 , wherein said enclosure comprises any one of a PCB card chassis, a rackmount card cage, a rackmount server chassis, a server case tower, a tower server chassis, and a modular storage network array.

Assignees

• Nokomis Inc

Inventors

• Keller Iii Walter J

Classifications

• H01Q1/247

  with frequency mixer, e.g. for direct satellite reception or Doppler radar · CPC title

• H01Q3/02

  using mechanical movement of antenna or antenna system as a whole · CPC title

• G01R31/002

  where the device under test is an electronic circuit · CPC title

• H01Q1/38

  formed by a conductive layer on an insulating support {(patch antennas H01Q9/0407; microstrip dipole antennas H01Q9/065; microstrip slot antennas H01Q13/106; transmission line microstrip antennas H01Q13/206; manufacturing reflecting surfaces using insulating material for supporting the reflecting surface  H01Q15/142)} · CPC title

• H01Q1/2275 Primary

  associated to expansion card or bus, e.g. in PCMCIA, PC cards, Wireless USB · CPC title