Jose Ale Hejase

20210112655, Apr 15, 2021

Oct 14, 2019

16/600795

- Armonk NY, US
Jose A. Hejase - Austin TX, US
Junyan Tang - Austin TX, US
Joshua C. Myers - Austin TX, US
Sungjun Chun - Austin TX, US
Wiren D. Becker - Hyde Park NY, US
Daniel M. Dreps - Georgetown TX, US

H05K 1/02
H05K 1/11
H01P 3/12
H01Q 1/22
H01Q 9/40
H01Q 5/10

A printed circuit board (‘PCB’) including a substrate integrated waveguide (‘SIW’) formed using two ground planes representing the top and bottom walls of the waveguide, tightly pitched ground vias to act as two side walls and two back walls, and a pair of monopole antennas placed at each end of the SIW acting as signal feeding/receiving structures is disclosed. The waveguide dominant mode cut off frequency is determined by the spacing between the two side walls. Within each monopole antenna pair, the first monopole antenna operates at a first frequency while the second monopole antenna operates at another frequency. For each monopole antenna pair, the first monopole antenna and the second monopole antenna are located in the SIW at a distance from the back wall optimal for each operating frequency.

20200112075, Apr 9, 2020

Oct 4, 2018

16/151856

- Armonk NY, US
Jose A. Hejase - Austin TX, US
Junyan Tang - Austin TX, US
Daniel M. Dreps - Georgetown TX, US

H01P 1/20
H01P 3/16
H01P 11/00
H05K 1/11
H05K 1/02

A method and apparatus for attenuating crosstalk between dielectric waveguides is provided. A first dielectric waveguide is formed to carry a first frequency band. A first filter is embedded within the first dielectric waveguide to attenuate transmission of a second frequency band through the first dielectric waveguide. The filter comprises alternating sections of a first dielectric material and a second dielectric material having different dielectric constants. The length of each section of the first and second dielectric materials is equal to a quarter of the wavelength of the central frequency of the second frequency band. A second waveguide is formed to carry the second frequency band. A second filter is embedded in the second dielectric waveguide to attenuate transmission of the first frequency band through the second dielectric waveguide. A cladding is disposed between the first and second waveguides.

20180228023, Aug 9, 2018

Feb 9, 2017

15/428688

- ARMONK NY, US
JOSE A. HEJASE - AUSTIN TX, US
ROGER S. KRABBENHOFT - ROCHESTER MN, US
DIANA D. ZUROVETZ - ROUND ROCK TX, US

H05K 1/03
H05K 1/02
H05K 3/00
D03D 1/00
D03D 15/00

A process of forming an angled fiberglass cloth weave includes weaving a first set of fibers oriented at a first non-orthogonal angle with respect to a printed circuit board to be formed from the angled fiberglass cloth weave with a second set of fibers oriented at a second non-orthogonal angle with respect to the printed circuit board to be formed form the angled fiberglass cloth weave.

20180113974, Apr 26, 2018

Oct 21, 2016

15/299546

- Armonk NY, US
Zhaoqing Chen - Poughkeepsie NY, US
Jose A. Hejase - Austin TX, US
Roger S. Krabbenhoft - Rochester MN, US
Pavel Roy Paladhi - Austin TX, US
Junyan Tang - Austin TX, US

G06F 17/50
G06N 3/08
G06N 3/04

Mechanisms are provided for implementing a skew rate artificial neural network (ANN). The mechanisms generate a training dataset for training the skew rate ANN. The training dataset comprises a plurality of sets of data and each set of data corresponds to a particular set of printed circuit board (PCB) and communication channel characteristics. The mechanisms train the skew rate ANN based on the training dataset to generate a trained skew rate ANN. The mechanisms then receive an input dataset representing a set of PCB and communication channel characteristics for a PCB design. The trained skew rate ANN generates a predicted skew factor for the PCB design based on the input dataset. The predicted skew factor is then output to a PCB design tool to modify the PCB design based on the predicted skew factor.

20180115042, Apr 26, 2018

Oct 21, 2016

15/331614

- Armonk NY, US
Daniel M. DREPS - Georgetown TX, US
Jose A. HEJASE - Austin TX, US
Joseph KUCZYNSKI - North Port FL, US
Joshua C. MYERS - Austin TX, US
Junyan TANG - Austin TX, US

H01P 3/16
H05K 1/18
H05K 1/02

Embodiments herein describe a high-speed communication channel in a PCB that includes a dielectric waveguide sandwiched between two ground layers. The dielectric waveguide includes a core and a cladding where the material of the core has a higher dielectric constant than the material of the cladding. Thus, electromagnetic signals propagating in the core are internally reflected at the interface between the core and cladding such that the electromagnetic signals are primary contained in the core.

20180115043, Apr 26, 2018

Oct 21, 2016

15/331658

- Armonk NY, US
Jose A. HEJASE - Austin TX, US
Joshua C. MYERS - Austin TX, US
Junyan TANG - Austin TX, US

H01P 3/16
H05K 1/02

Embodiments herein describe a high-speed communication channel in a PCB that includes a dielectric waveguide sandwiched between two ground layers. The dielectric waveguide includes a core and a cladding where the material of the core has a higher dielectric constant than the material of the cladding. Thus, electromagnetic signals propagating in the core are internally reflected at the interface between the core and cladding such that the electromagnetic signals are primary contained in the core.

20180108971, Apr 19, 2018

Oct 17, 2016

15/295308

- Armonk NY, US
Jose A. HEJASE - Austin TX, US
Joseph KUCZYNSKI - North Port FL, US
Joshua C. Myers - Austin TX, US
Junyan TANG - Austin TX, US

H01P 5/08
H05K 1/02
H05K 1/11
H05K 3/40
H05K 3/02
H01P 3/16
H01P 11/00

Embodiments herein describe a high-speed communication channel in a PCB that includes a dielectric waveguide coupled at respective ends to coaxial vias. The dielectric waveguide includes a core and a cladding where the material of the core has a higher dielectric constant than the material of the cladding. Thus, electromagnetic signals propagating in the core are internally reflected at the interface between the core and cladding such that the electromagnetic signals are primary contained in the core. The coaxial vias include a center conductor and an outer conductor (or shield) which extend through one or more layers of the PCB. One of the coaxial vias radiates electromagnetic signals into the dielectric waveguide at a first end of the core while the other coaxial via receives the radiated signals at a second end of the core.

20170130734, May 11, 2017

Nov 9, 2015

14/935663

- Armonk NY, US
Jose A. Hejase - Austin TX, US
Joel Mendez - Baytown TX, US

F04D 29/52
F04D 27/00
F04D 29/02
F04D 29/58

Disclosed aspects relate to cooling electronics. A set of recirculation flaps is coupled with a cooling fan. At least one recirculation flap has a ferrous material. In various embodiments, the set of recirculation flaps is arranged in an open position in response to air pressure from the cooling fan, and is arranged in a closed position in response to substantially no air pressure from the cooling fan. A controller is coupled with the cooling fan. The controller indicates a set of indicated positions for the set of recirculation flaps based on a tachometer value. An electromagnet is connected with the controller to position the set of recirculation flaps in the set of indicated positions using the ferrous material. In various embodiments, the electromagnet engages the ferrous material to arrange the set of recirculation flaps in an open position.