Jesse Y Lin

US Patent:

8184060, May 22, 2012

Filed:

Oct 7, 2008

Appl. No.:

12/246961

Inventors:

Xin Du - Schaumburg IL, US
Jesse Lin - Chicago IL, US
Miroslav Parvanov - Naperville IL, US

Assignee:

PCTEL, Inc. - Bloomingdale IL

International Classification:

H01Q 13/00

US Classification:

343773

Abstract:

A multi-band antenna is provided that operates in at least two non-harmonically related frequency bands. The antenna includes a ground plane, a cone-shaped relatively high frequency antenna element with a tip of the high frequency antenna disposed adjacent to but electrically isolated from the ground plane with a base of the cone-shaped antenna element extending away from the ground plane, and at least three relatively low frequency antenna elements electrically connected to and extending between the base of the cone-shaped antenna element and the ground plane.

US Patent:

8253647, Aug 28, 2012

Filed:

Feb 8, 2010

Appl. No.:

12/701778

Inventors:

Kevin Le - Bloomingdale IL, US
Jesse Lin - Carol Stream IL, US

Assignee:

PC-Tel, Inc. - Bloomingdale IL

International Classification:

H01Q 1/50

US Classification:

343906, 343702, 343850

Abstract:

A high isolation multi-band monopole antenna that can be used in connection with MIMO systems is provided. The antenna can include various components to prevent band to band coupling and provide isolation from neighboring antennas.

US Patent:

D666583, Sep 4, 2012

Filed:

Feb 27, 2009

Appl. No.:

29/332940

Inventors:

Kevin Le - Bloomingdale IL, US
Jesse Lin - Carol Stream IL, US

Assignee:

PC-Tel, Inc. - Bloomingdale IL

International Classification:

1403

US Classification:

D14230, D14233

US Patent:

20110063185, Mar 17, 2011

Filed:

Sep 13, 2010

Appl. No.:

12/880366

Inventors:

Jesse Lin - Carol Stream IL, US
Kevin Le - Portola Hills CA, US
Miroslav Parvanov - Naperville IL, US

Assignee:

PC-Tel, Inc. - Bloomingdale IL

International Classification:

H01Q 1/42
H01Q 9/32

US Classification:

343872, 343900

Abstract:

An antenna operating at a frequency f is provided. The antenna includes an elongated shaft having a first end, a second end, a first member, a second member, and a third member, and an antenna sleeve surrounding at least a portion of the second member of the elongated shaft. The first, second, and third members are contiguous with each other, and the antenna sleeve is loaded with a dielectric material to shorten a length of the second member of the elongated shaft.

US Patent:

20190273316, Sep 5, 2019

Filed:

Mar 2, 2018

Appl. No.:

15/910618

Inventors:

- Bloomingdale IL, US
Jesse Lin - Lisle IL, US

International Classification:

H01Q 3/36
H01Q 3/28

Abstract:

An antenna system that can reduce signal radiation in an unwanted direction while preserving signal radiation outside of the unwanted direction is provided. The antenna system can include a signal input source with a main antenna and a secondary antenna each electrically coupled to the signal input source. The main antenna can transmit a primary signal to produce a primary radiation pattern in response to a first portion of energy from the signal input source, and the secondary antenna can transmit a secondary signal to produce a secondary radiation pattern in response to a second portion of energy from the signal input source. The secondary signal can be amplitude modified and phase shifted to position the secondary radiation pattern to cancel out or reduce a portion of the primary radiation pattern extending in an unwanted direction while substantially preserving portions of the primary radiation pattern outside of the unwanted direction.