Antenna using a photonic bandgap structure

• US 7,522,105 B1
• Filed: 07/17/2006
• Issued: 04/21/2009
• Est. Priority Date: 07/17/2006
• Status: Expired due to Fees

• Current Assignee: Government of the United States of America
• Original Assignee: the united states of america as represented by the secretary of the navy
• Inventors: LaComb, Julie Anne
• Primary Examiner(s): DINH, TRINH VO
• Application Number:
  US11/489,815
• Time in Patent Office: 1,009 Days
• Field of Search: None
• US Class Current: 343/700.0MS
• CPC Class Codes: H01Q 1/28 Adaptation for use in or on aircraft, missiles, satellites, or balloons
• CPC Class Codes: H01Q 1/32 Adaptation for use in or on road or rail vehicles
• CPC Class Codes: H01Q 1/34 Adaptation for use in or on ships, submarines, buoys or torpedoes for subaqueous use H01Q1/04
• CPC Class Codes: H01Q 15/006 Selective devices having photonic band gap materials or materials of which the material properties are frequency dependent, e.g. perforated substrates, high-impedance surfaces
• CPC Class Codes: H01Q 9/0407 Substantially flat resonant element parallel to ground plane, e.g. patch antenna dipole H01Q9/285; monopole H01Q9/40

Abstract

A microstrip patch antenna utilizes a microstrip patch antenna substrate formed of photonic bandgap material. One or more periodic patterns may be used therewith to produce multiple bandgaps into the photonic bandgap material. The periodic patterns may be produced by introducing periodic defects into the dielectric material substrate with drilled holes, slots, shorted vias, blind vias, buried vias, and/or plated or unplated patterns, such as plated patterns on the groundplane or on internally positioned surfaces, or on the surface adjacent the radiating elements. One or more radiating elements are used on an upper surface of said microstrip patch antenna substrate, and a groundplane is formed on a lower surface of said microstrip patch antenna substrate.

Claims

1. A method for making a microstrip patch antenna, said method comprising:

utilizing dielectric material to form a multiband photonic bandgap structure for use as microstrip patch antenna substrate;

forming at least one radiating element on an upper surface of said microstrip patch antenna substrate,

forming a ground plane on a lower surface of said microstrip patch antenna substrate, and

integrating a metallic periodic pattern into said groundplane.

2. The method of claim 1 further comprising forming said multiband photonic bandgap structure by introducing periodic defects to said dielectric material, wherein said defects are physical gaps that function as bandgaps that prevent the propagation of electromagnetic waves of a particular frequency within the bandgap.

3. The method of claim 1 further comprising providing that said metallic pattern is a periodic double ring pattern.

4. The method of claim 3 further comprising providing that said metallic pattern is a periodic double ring circle pattern.

5. The method of claim 1 further comprising forming a metallic pattern on said upper surface of said microstrip patch antenna substrate.

6. The method of claim 1 further comprising providing a plurality of layers of photonic bandgap material for use as microstrip patch antenna substrate.

7. The method of claim 6 further comprising providing that at least one of said plurality of layers of photonic bandgap material is formed from dielectric material with a periodic pattern of openings formed therein.

8. The method of claim 6 further comprising providing that at least one of said plurality of layers of photonic bandgap material is formed from dielectric material with a periodic metallic pattern formed thereon.

9. The method of claim 1 further comprising utilizing dielectric material with a dielectric constant of at least 10.

10. A microstrip patch antenna, comprising:

a microstrip patch antenna substrate formed of photonic bandgap material;

a periodic pattern for said photonic bandgap material such that said periodic pattern is operable to produce multiple bandgaps for said photonic bandgap material;

at least one radiating element on an upper surface of said microstrip patch antenna substrate; and

a ground plane on a lower surface of said microstrip patch antenna substrate wherein the microstrip patch antenna further comprises a metallic periodic pattern, which is integrated into said groundplane.

11. The microstrip of claim 10 wherein said metallic pattern comprises a periodic double ring pattern.

12. The microstrip patch antenna of claim 11 wherein said metallic pattern comprises a periodic double ring circle pattern.

13. The microstrip patch antenna of claim 10 further comprising a metallic pattern positioned on said upper surface of said microstrip patch antenna substrate.

14. The microstrip patch antenna of claim 10 further comprising a plurality of layers of said photonic bandgap material for use as microstrip patch antenna substrate.

15. The microstrip patch antenna of claim 14 wherein at least one of said plurality of layers of said photonic bandgap material comprises dielectric material with a periodic pattern of openings formed therein.

16. The microstrip patch antenna of claim 14 wherein at least one of said plurality of layers of photonic bandgap material comprises dielectric material with a periodic metallic pattern formed thereon.

17. The microstrip patch antenna of claim 10 wherein said photonic bandgap material comprises dielectric material with a dielectric constant of at least 10.