RFID Antenna

• US 20160156096A1
• Filed: 07/21/2014
• Published: 06/02/2016
• Est. Priority Date: 07/19/2013
• Status: Abandoned Application

• Current Assignee: Bruce Gordon Colpitts, Christopher David Rouse, Joseph Alexander Mosseler, KnowCharge, Inc., Yonghao Ni
• Original Assignee: KnowCharge, Inc.
• Inventors: Ni, Yonghao, ROUSE, Christopher David, Colpitts, Bruce Gordon, MOSSELER, Joseph Alexander
• Application Number:
  US14/906,008
• Publication Number:
  US 20160156096A1
• Time in Patent Office: Days
• CPC Class Codes: B82Y 30/00 Nanotechnology for materials or surface science, e.g. nanocomposites
• CPC Class Codes: H01B 1/24 the conductive material comprising carbon-silicon compounds, carbon or silicon
• CPC Class Codes: H01Q 1/2225 used in active tags, i.e. provided with its own power source or in passive tags, i.e. deriving power from RF signal
• CPC Class Codes: H01Q 1/364 using a particular conducting material, e.g. superconductor
• CPC Class Codes: H01Q 1/368 using carbon or carbon composite
• CPC Class Codes: H01Q 1/38 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 Class Codes: H01Q 9/04 Resonant antennas
• CPC Class Codes: H01Q 9/26 with folded element or elements, the folded parts being spaced apart a small fraction of operating wavelength resonant loop antennas H01Q7/00
• CPC Class Codes: H01Q 9/285 Planar dipole H01Q9/065 takes precedence; patch antenna H01Q9/0407

Abstract

The present disclosure relates to an antenna, comprising (a) substrate; and (b) a composition, comprising, (i) an electrically conductive material; and (ii) a binder; wherein the composition is adjacent to the substrate.

Claims

1. An antenna, comprising:

a. a substrate; and

b. a composition, comprising,

(i) an electrically conductive material; and

(ii) a binder;

wherein the composition is adjacent to the substrate.

2. The antenna according to claim 1, wherein the antenna has a conductivity of at least 300 S/m.

3. The antenna of claim 1, wherein the electrically conductive material comprises graphite, carbon black, carbon fibrils or carbon fibers, nanofiber, and carbon nanotubes, an electrically conductive polymer or an electrically conductive polymer composite.

4. The antenna according to claim 3, wherein the electrically conductive polymer comprises poly(phenylenevinylenes), polyfluorenes, poly(spirobifluorenes), polythiophenes, poly(p-phenylenes), poly(anilines), poly(pyrroles), copolymers thereof, or mixtures thereof, doped with a conductive dopant such as 2-naphthalene sulfonic acid (NSA), 9,10-anthraquinone-2-sulfonic acid sodium salt (AQSA-Na), p-toluenesulfonic acid or its sodium salt (PTSA or PTSA-Na), benzenesulfonic acid (BSA), or dodecylbenzene sulfonic acid or its sodium salt (DBSA and DBSA-Na).

5. The antenna of claim 3, wherein the electrically conductive polymer composite comprises a charge transfer polymer or an ionically conductive polymer and an electrically conductive material such as graphite, copper, aluminum or nano- or micro-particles of silver-shelled copper.

6. The antenna according to claim 5, wherein the charge transfer polymer comprises tetrathiofulvalene and 7,7,8,8-tetracyano-p-quinodimethane.

7. The antenna according to claim 5, wherein the ionically conductive polymer comprises a cationic polymer or an anionic polymer.

8. The antenna according to claim 7, wherein the ionically conductive polymer is a cationic polymer.

9. The antenna according to claim 8, wherein the ionically conductive cationic polymer comprises ammonium, phosphonium or sulfonium groups.

10. The antenna according to claim 9, wherein the ionically conductive cationic polymer comprises 2-hydroxyethyl methacrylate (HEMA), 2-acrylamido-2-methylpropane sulfonic acid (AAMPS), 3-methacryloylaminopropyl-trimethyl ammonium chloride (MAPTAC), or N,N-diallyl-N,N-dimethyl ammonium chloride (DADMAC).

11. The antenna according to claim 10, wherein the ionically conductive polymer comprises DADMAC.

12. The antenna according to claim 1, wherein the binder comprises latex, synthetic latex, starch, polyvinyl alcohol, soy protein, carboxyl methyl cellulose (CMC), or mixtures thereof.

13. The antenna according to claim 1, wherein the composition further comprises a carrier, such as a particulate carrier.

15. The antenna according to claim 1, wherein the substrate comprises a cellulosic paper layer, hemicellulosic paper layer, a calcium carbonate paper layer, or a biodegradable polymer layer.

16. The antenna according to claim 15, wherein the the biodegradable polymer layer comprises polycaprolactone (PCL), polyvinyl alcohol (PVOH, PVA, or PVAI), and polylactic acid or polylactide (PLA).

17. The antenna according to claim 15, wherein the cellulosic paper layer further comprises clay.

18. The antenna according to claim 1, wherein the antenna further comprises an electrical connector coupled to the composition and the substrate.

19. The antenna according to claim 18, wherein the connector comprises a coaxial connector.

20. The antenna according to claim 18, wherein the electrical connector is coupled to the composition and the substrate via a conductive epoxy.

21. The antenna according to claim 1, wherein the antenna comprises a dipole antenna, a loop antenna, a spiral antenna or a micro-strip patch antenna.

14. (canceled)