Michael G Guler

US Patent:

7876280, Jan 25, 2011

Filed:

Feb 6, 2008

Appl. No.:

12/012880

Inventors:

John D. Voss - Cumming GA, US
Terence D. Newbury - Hoschton GA, US
Michael G. Guler - Dawsonville GA, US

Assignee:

EMS Technologies, Inc. - Norcross GA

International Classification:

H01Q 13/00
H01Q 9/28

US Classification:

343773, 343807

Abstract:

A broadband bicone antenna supports frequency selective control of electrical length. Frequency selective control of the electrical length of an antenna can provide an antenna exhibiting two or more different electrical lengths where use of each length depends upon the operating frequencies of the signals. The electrical length of the bicone antenna may be reduced in response to higher operating frequencies. Such reduction in electrical length at higher frequencies can provide improved antenna radiation patterns for the antenna. Further, the electrical length of the bicone antenna may be increased in response to low frequency operation. Such increase in electrical length may improve VSWR performance at lower frequencies. Simultaneous operation of the bicone antenna at varied electrical lengths for varied frequency bands can provide improved broadband performance of the antenna.

US Patent:

8339326, Dec 25, 2012

Filed:

Oct 20, 2009

Appl. No.:

12/582440

Inventors:

Michael G. Guler - Dawsonville GA, US
Eric L. Cross - Alpharetta GA, US
Terence D. Newbury - Hoschton GA, US

Assignee:

EMS Technologies, Inc. - Norcross GA

International Classification:

H01Q 19/00

US Classification:

343754, 343756, 343759, 343766

Abstract:

Controlling an antenna's polarization sense. An antenna system includes a polarized antenna and a mechanism for controlling the polarization sense of the antenna. The controlling mechanism can include rotatable polarizer panels disposed between the antenna's aperture and the antenna's target. The polarizer panels are rotated to switch between polarization senses. The polarizer panels can comprise meander line polarizers that convert the polarization sense of a linear polarized antenna to a circularly polarized antenna and vice-versa. The meander line polarizers can be rotated from a position in which the meander line polarizer panels convert between linear polarization and right-hand-circular (“RHC”) polarization to a position that converts between linear polarization and left-hand-circular (“LHC”) polarization. The polarizer panels can be rotated using a mechanical system that rotates the polarizer panels based on a signal received from a remote device.

US Patent:

20110063053, Mar 17, 2011

Filed:

Sep 15, 2010

Appl. No.:

12/882897

Inventors:

Michael G. Guler - Dawsonville GA, US

International Classification:

H01P 1/16

US Classification:

333 21 R, 333248

Abstract:

A radiating element having a transition from a waveguide to a dipole radiator. The radiating element utilizes the electric field of electromagnetic waves propagating in the waveguide to excite a section of a microstrip transmission line that is collinear with the waveguide's propagation direction. A waveguide septum guides the electric field of the electromagnetic waves into the transmission line and provides impedance matching. The transmission line can be formed on a first side of a dielectric substrate having a ground plane on a second side of the substrate. A first dipole leg is formed by making a ninety degree turn in the transmission line. A second dipole leg is extended from the ground plane and turned opposite from the first dipole leg. The transmission line includes a transformer having stepped or gradual changes in width of the transmission line leading to the dipole to provide additional impedance matching.

US Patent:

20110063179, Mar 17, 2011

Filed:

Sep 15, 2010

Appl. No.:

12/882884

Inventors:

Michael G. Guler - Dawsonville GA, US

International Classification:

H01Q 3/00
H01Q 13/02
H01Q 19/10
H01Q 19/12

US Classification:

343766, 343781 R, 343834, 343840, 343763

Abstract:

A rotatable reflector antenna system that supports on-the-move communications to and from a mobile land, airborne, or maritime vehicle with a remote communication device, such as a geostationary satellite. The antenna system can include a pillbox antenna, a line feed antenna, or an array of horn antennas that convey electromagnetic waves between a transceiver (transmitter and/or receiver) and a reflector. The reflector may be embodied as a singly curved, parabolic cylinder reflector coupled to support members in a manner that enables the reflector to rotate with respect to the antenna. The reflector can rotate in a first direction, such as an elevation rotation, and the entire antenna system including the reflector can be mounted to a turntable or other rotatable platform that rotates in a second direction, such as an azimuth rotation.

US Patent:

20120218160, Aug 30, 2012

Filed:

Feb 13, 2012

Appl. No.:

13/371646

Inventors:

James P. Montgomery - Marietta GA, US
Shawn D. Rogers - Johns Creek GA, US
Michael G. Guler - Dawsonville GA, US

Assignee:

HONEYWELL INTERNATIONAL INC. - Morristown NJ

International Classification:

H01Q 13/00
H01P 11/00
H01P 1/207

US Classification:

343776, 333208, 29600

Abstract:

A mode filter for an antenna having at least one element aperture is provided. The mode filter includes at least one waveguide extension to extend the at least one element aperture, and at least one two-by-two (2×2) array of quad-ridged waveguide sections connected to a respective at least one waveguide extension. When the at least one waveguide extension is positioned between the at least one element aperture and the at least one two-by-two (2×2) array of quad-ridged waveguide sections, undesired electromagnetic modes of the antenna are suppressed.

US Patent:

20140055312, Feb 27, 2014

Filed:

Aug 27, 2012

Appl. No.:

13/595216

Inventors:

Michael G. Guler - Dawsonville GA, US

Assignee:

HONEYWELL INTERNATIONAL INC. - Morristown NJ

International Classification:

H01Q 13/00
H01Q 13/02

US Classification:

343785, 343772, 343786

Abstract:

Systems and methods for a dual polarization feed are provided. In at least one embodiment, a system comprises a polarization transition waveguide that comprises a first waveguide transmission line; an electrical transmission line, wherein a first electromagnetic signal propagating through the first waveguide transmission line propagates between the first waveguide transmission line and the electrical transmission line; and a dipole radiator coupled to the electrical transmission line, wherein the dipole radiator radiates the first electromagnetic signal in an orthogonal polarization to the polarization of the first electromagnetic signal when the first electromagnetic signal propagates in the first waveguide transmission line. The system further comprises a second waveguide transmission line that propagates a second electromagnetic signal having the same polarization as a signal propagating in the first waveguide transmission line; and a waveguide element coupled to both the polarization transition waveguide and the second waveguide transmission line.

US Patent:

46883258, Aug 25, 1987

Filed:

Nov 30, 1984

Appl. No.:

6/676924

Inventors:

Michael G. Guler - Melbourne FL
Sharadchandra D. Patel - Melbourne FL
James K. Conn - Indialantic FL
Marcus L. Foster - Palm Bay FL

Assignee:

Harris Corporation - Melbourne FL

International Classification:

H01P 1100

US Classification:

29600

Abstract:

An antenna fabrication scheme for shaped reflectors analyzes the geometry of the shaped reflector to be fabricated. On the basis of this analysis, a surface of revolution which closely approximates the shaped reflector is defined. The axis of revolution of the generated surface can then be employed by a single reflector shaping tool to describe the surface of revolution a portion of which approximates that of the desired shaped reflector. The shaped reflector is then effectively removed from the described surface by defining the perimeter of the shaped reflector on the surface of revolution.

US Patent:

60285621, Feb 22, 2000

Filed:

Jul 31, 1997

Appl. No.:

8/903678

Inventors:

Michael G. Guler - Lilburn GA
James P. Montgomery - Roswell GA

Assignee:

EMS Technologies, Inc. - Norcross GA

International Classification:

H01Q 1310

US Classification:

343771

Abstract:

A waveguide-implemented antenna comprising a planar array of waveguide slot radiators for communicating electromagnetic signals exhibiting simultaneous dual polarization states. The antenna can consist of parallel waveguides of rectangular or ridged cross section. The broadwalls of each parallel waveguide contain a linear array of input slots for receiving (transmitting) electromagnetic signals having a first polarization state from (to) the parallel waveguide and for transmitting (receiving) those signals into (from) an array of cavity sections. The cavity sections comprise a short section of uniform waveguide with a length of much less than a wavelength in the propagation direction. The cavity sections feed to output slots which are rotated relative to the input slots; such that the output slots exhibit a second polarization state, which they radiate (receive) to (from) free space. By interlacing parallel waveguides with alternating +45 degree and -45 degree rotations of the output slots, two independent antennas are formed exhibiting simultaneous dual polarizations.