Search

Rafi R Hershtig

from Salisbury, MD
Age ~66
Get Report
Also known as:
Ofra Hershtig, Hershtig Rafi, Rafi G
Phone and address:
27150 Scotland Pkwy, Salisbury, MD 21801
(410) 860-0339
Related to:
Eliran Hershko, 40
Connected to:
Evan M Hershy, 32Abdirahman O Hersi, 43Bashir S Hersi, 51Faisal M Hersi, 46Kamar H Hersi, 70Mahdi O Hersi, 52Wendy K Hersick, 57Joelle M Herskind, 55Joseph G Hersko, 64Amber H Herskovitz, 49

Rafi Hershtig Phones & Addresses

  • 27150 Scotland Pkwy, Salisbury, MD 21801 (410) 860-0339
  • Lewiston, NY
  • Los Angeles, CA

Work

Company: K&l microwave Nov 1988 Address: K&L Microwave, Salisbury MD. Position: Vp of filter systems and r&d

Education

School / High School: Universitat Ben Gurion Ba-Negev 1981 to 1985 Specialities: Electrical Engineering and Computer Science

Skills

Microwave • Rf • Rf Engineering • Wireless • Antennas • Filter Design • Analog • Electronics • Spectrum Analyzer • Rf Design • Cellular Communications • Circuit Design • Lte • Analog Circuit Design • Electrical Engineering • Pcb Design • Digital Signal Processors • 4G • Agilent Ads • Cdma • Bluetooth

Languages

Hebrew • English • Romanian

Interests

Christianity • Kids • Cooking • Exercise • Investing • Sweepstakes • Electronics • Home Improvement • Reading • Music • Sports • Automobiles • Family Values • Travel • Movies • Collecting • Home Decoration

Emails

r***[email protected]

Industries

Electrical/Electronic Manufacturing

Resumes

Resumes

Rafi Hershtig Photo 1

Vice President Of Engineering And Chief Technology Officer

View page
Location:
27150 Scotland Pkwy, Salisbury, MD 21801
Industry:
Electrical/Electronic Manufacturing
Work:
K&L Microwave - K&L Microwave, Salisbury MD. since Nov 1988
VP of Filter Systems and R&D
ELTA - Ashdod, Israel Jun 1985 - Oct 1988
Microwave Sub-Systems Engineer
Education:
Universitat Ben Gurion Ba-Negev 1981 - 1985
Skills:
Microwave
Rf
Rf Engineering
Wireless
Antennas
Filter Design
Analog
Electronics
Spectrum Analyzer
Rf Design
Cellular Communications
Circuit Design
Lte
Analog Circuit Design
Electrical Engineering
Pcb Design
Digital Signal Processors
4G
Agilent Ads
Cdma
Bluetooth
Interests:
Christianity
Kids
Cooking
Exercise
Investing
Sweepstakes
Electronics
Home Improvement
Reading
Music
Sports
Automobiles
Family Values
Travel
Movies
Collecting
Home Decoration
Languages:
Hebrew
English
Romanian

Publications

Us Patents

Bandpass Filter Having Tri-Sections

View page
US Patent:
6342825, Jan 29, 2002
Filed:
Dec 20, 2000
Appl. No.:
09/740006
Inventors:
Rafi Hershtig - Salisbury MD
Assignee:
K L Microwave - Salisbury MD
International Classification:
H01P 1208
US Classification:
333202, 333212, 3332191
Abstract:
A bandpass filter having three waveguide cavities probelessly coupled in a tri-section for producing an asymmetric response about a passband. In another aspect, the bandpass filter also includes first and second waveguide tri-sections coupled in series via a common waveguide cavity, providing a bandpass waveguide filter having transmission zeros on only one side a filter passband.

Electronic Variable Delay Line Filters Using Two In-Line Varactor-Controlled Four-Input Couplers Allowing Variable Delay

View page
US Patent:
6600388, Jul 29, 2003
Filed:
Apr 1, 2002
Appl. No.:
10/112031
Inventors:
Rafi Hershtig - Salisbury MD
Assignee:
Delaware Capital Formation, Inc. - Wilmington DE
International Classification:
H01P 900
US Classification:
333156, 333161, 333164, 333 28 R, 330149, 330151
Abstract:
A delay circuit for the secondary path of a feed-forward high power amplifier is disclosed. A first 3 dB quadrature hybrid coupler is coupled to first and second resonator circuits that each includes a varactor circuit and are resonant at a first resonant frequency. The output of the first hybrid coupler is coupled to the input of a second 3 dB quadrature hybrid coupler. The second hybrid coupler is coupled to third and fourth resonator circuits that each includes a varactor circuit and are resonant at a second resonant frequency that is greater than the first resonant frequency. The overall combined delay response of the first hybrid coupler and the second hybrid coupler appearing at the fourth node of the second hybrid coupler is substantially constant between the first resonant frequency and the second resonant frequency.

Multi-Coupler

View page
US Patent:
20020047756, Apr 25, 2002
Filed:
Feb 1, 2001
Appl. No.:
09/774793
Inventors:
Rafi Hershtig - Salisbury MD, US
Ray Delario - Salisbury MD, US
Randy Hammer - Bishopville MD, US
David Spann - Salisbury MD, US
International Classification:
H01P001/213
US Classification:
333/134000, 333/202000
Abstract:
A new coaxial multi-coupler that is relatively inexpensive and efficient to manufacture in a low volume and high product mix manufacturing environment. A plurality of coaxial resonators are bonded together to form the multi-coupler. Then, at least one coupling hole is formed for capacitively and/or inductively coupling at least two of the resonators together. Formation of coupling holes upon bonding the resonators together allows for improved manufacturing techniques, convenient fine-tuning of coupling between resonators, and significantly better overall filter/multi-coupler performance as compared with the prior art. One reason for this is that precise alignment of the resonators during bonding is unnecessary according to aspects of the present invention.

Single Port Delay Element

View page
US Patent:
20030197577, Oct 23, 2003
Filed:
Apr 22, 2002
Appl. No.:
10/126969
Inventors:
Rafi Hershtig - Salisbury MD, US
Assignee:
K&L Microwave, Inc. - Salisbury MD
International Classification:
H01P001/18
H01P001/20
US Classification:
333/156000, 333/202000
Abstract:
Aspects of the present invention include a novel delay system, and corresponding method, for increasing the natural delay of a system utilizing filters having only one port. Aspects of the present invention also involve a delay circuit utilizing one or more circulators. Yet further aspects of the invention involve providing a reflective surface for increasing the distance traversed thereby increasing delay. In a further aspect of the invention, multiple filters may be employed by coupling those filters through one or more circulators interchangeably, thereby creating a varying number of delay combinations, and thereby varying the cumulative delay times. In a further aspect of the invention, filter resonators may be arranged in arrays and may be coupled through opening in the cavities encasing the resonators. As an additional aspect of the invention, the resonator cavities of the filter may be cross-coupled. As yet a further aspect of the invention, the components of the circulator and filter combination may be contained within a single, unitary housing.

High Q Surface Mount Technology Cavity Filter

View page
US Patent:
20090146763, Jun 11, 2009
Filed:
Dec 5, 2008
Appl. No.:
12/329098
Inventors:
Rafi Hershtig - Salisbury MD, US
Assignee:
K&L Microwave Inc. - Salisbury MD
International Classification:
H01P 1/20
US Classification:
333204
Abstract:
A cavity filter device includes a micro-strip structure comprising a low dielectric organic material forming a printed wiring board. The printed wiring board may be soldered, welded, or adhered to the base of one or more cavity filters. The cavity filter may include a coupling pin such as a RF pin positioned at the base of the filter. The micro-strip structure may be configured to carry a RF signal from the input, across the micro-strip structure to the RF pin positioned at the base of the filter.

Low Passive Inter-Modulation Capacitor

View page
US Patent:
20110234336, Sep 29, 2011
Filed:
Mar 16, 2011
Appl. No.:
13/049343
Inventors:
Rafi Hershtig - Salisbury MD, US
Assignee:
Delaware Capital Formation, Inc. - Wilmington DE
International Classification:
H03H 7/01
H01G 4/002
H01G 7/00
US Classification:
333132, 3613011, 333175, 29 2541
Abstract:
A high power, low passive inter-modulation capacitor is presented, which is formed using metal clad substrates, which are broad-side coupled through a thin air gap. Each substrate may include metal layers affixed on both sides which are electrical coupled together to form a single capacitor plate, or each substrate may have only a single metal layer on the surface adjacent to the air gap. The capacitor has particular application in low cost RF and microwave filters, which may be used in communication equipment and communication test equipment such a diplexers, for low PIM applications.

Bandpass Filter

View page
US Patent:
62362925, May 22, 2001
Filed:
Jun 30, 1999
Appl. No.:
9/343258
Inventors:
Rafi Hershtig - Salisbury MD
Assignee:
Delaware Capital Formation, Inc. - Wilmington DE
International Classification:
H01P 120
H01P 710
US Classification:
333212
Abstract:
A bandpass filter having three waveguide cavities probelessly coupled in a tri-section for producing an asymmetric response about a passband. In another aspect, the bandpass filter also includes first and second waveguide tri-sections coupled in series via a common waveguide cavity, providing a bandpass waveguide filter having transmission zeroes on only one side a filter passband.

Delay Line Filter

View page
US Patent:
63170132, Nov 13, 2001
Filed:
Jun 14, 2000
Appl. No.:
9/593501
Inventors:
Rafi Hershtig - Salisbury MD
Assignee:
K & L Microwave Incorporated - Salisbury MD
International Classification:
H01P 512
H01P 900
H01P 120
H03H 732
H03H 701
US Classification:
333118
Abstract:
A filter, for use with a delay compensating circuit in a delay line filter, formed from co-located capacitors. The capacitors may be formed as traces disposed on a circuit card and co-located to provide capacitive coupling to each other and ground. Proximity coupling wires are connected at one end to capacitive traces, and at the other end hang in mid-air above the next adjacent capacitive trace. The distance between each proximity coupling wire and the neighboring capacitive trace can be varied to control the capacitance coupling between neighboring capacitive traces. The filter is thus tuned by controlling the distances between the proximity coupling wires, and by squeezing or stretching the inductors. The shunt coils control the frequency of the filter, while the series of capacitive traces control the bandwidth.
Control profile
Rafi R Hershtig from Salisbury, MD, age ~66 Get Report