Substrate-loaded frequency-scaled ultra-wide spectrum element

Patent metadata

Field	Value
Publication number	US-11069984-B2
Application number	US-201816057709-A
Country	US
Kind code	B2
Filing date	Aug 7, 2018
Priority date	Jun 16, 2015
Publication date	Jul 20, 2021
Grant date	Jul 20, 2021

Abstract

A radiating element for a phased array antenna includes a first dielectric layer, a first conductive layer disposed on a first side of the first dielectric layer, the first conductive layer including a first member comprising a first stem and a first impedance matching portion, wherein the first impedance matching portion comprises at least one projecting portion projecting from a first edge of the first impedance matching portion, and a second member spaced apart from the first member, the second member including a second impedance matching portion, wherein the second impedance matching portion comprises at least one other projecting portion projecting toward the first edge of the first impedance matching portion.

First claim

What is claimed as new and desired to be protected by Letters Patent of the United States is:

1. A radiating element for a phased array antenna comprising:
a first dielectric layer;
a first conductive layer disposed on a first side of the first dielectric layer, the first conductive layer comprising a signal ear and a ground ear configured to together radiate an electromagnetic field in response to a signal input to the radiating element, wherein:
the signal ear comprises a first stem and a first impedance matching portion, wherein the first impedance matching portion comprises at least one projecting portion projecting toward the ground ear, and
the ground ear spaced apart from the signal ear comprises a second impedance matching portion, wherein the second impedance matching portion comprises at least one other projecting portion projecting toward the at least one projecting portion of the first impedance matching portion.

2. The radiating element of claim 1 , wherein the signal ear further comprises a first capacitive coupling portion along an opposite edge from the first at least one projection, the first capacitive coupling portion configured to capacitively couple to a first ground pillar.

3. The radiating element of claim 1 , wherein the first impedance matching portion and the second impedance matching portion are substantially symmetrical.

4. The radiating element of claim 1 , wherein the first impedance matching portion comprises a first projecting portion at an end of the signal ear and a second projecting portion spaced between the first projecting portion and the first stem, and wherein the first projecting portion projects farther than the second projecting portion.

5. The radiating element of claim 1 , wherein the signal ear is electrically insulated from the ground ear.

6. The radiating element of claim 1 , further comprising a second conductive layer disposed on a second side of the first dielectric layer, the second conductive layer comprising a ground strip, wherein at least a portion of the ground strip and at least a portion of the first stem form a microstrip or a stripline.

7. The radiating element of claim 1 , further comprising:
a second conductive layer disposed on a second side of the first dielectric layer, the second conductive layer comprising a first ground strip;
a second dielectric layer disposed on a side of the first conductive layer opposite the first dielectric layer; and
a third conductive layer disposed on a side of the second dielectric layer, the third conductive layer comprising a second ground strip,
wherein the first ground strip and the second ground strip are electrically connected to the ground ear.

Assignees

• Mitre Corp
• Us Gov Sec Navy

Inventors

• Elsallal Wajih
• Hood Jamie
• Locker Al
• Kindt Rick W

Classifications

• H01Q5/25 Primary

  Ultra-wideband [UWB] systems, e.g. multiple resonance systems; Pulse systems · CPC title

• H01Q1/48

  Earthing means; Earth screens; Counterpoises · CPC title

• H01Q21/064

  using horn or slot aerials (slotted waveguides arrays H01Q21/005) · CPC title

• H01Q21/24

  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 title

• H01Q21/061 Primary

  Two dimensional planar arrays · CPC title