Arun C Kundu4308 Redwood Ct, Phoenix, AZ 85048

6828880, Dec 7, 2004

Sep 6, 2002

10/236416

Arun Chandra Kundu - Phoenix AZ

TDK Corporation - Tokyo

H01P 120

333202, 333210

A highly compact band pass filter that has excellent mechanical strength is disclosed. A band pass filter according to the present invention employs a dielectric block of substantially rectangular prismatic shape constituted of a first portion lying between a first cross-section of the dielectric block and a second cross-section of the dielectric block substantially parallel to the first cross-section and second and third portions divided by the first portion and metal plates formed on surfaces of the dielectric block. The first portion of the dielectric block and the metal plates formed thereon are enabled to act as an evanescent waveguide. The second portion of the dielectric block and the metal plates formed thereon are enabled to act as a first resonator. The third portion of the dielectric block and the metal plates formed thereon are enabled to act as a second resonator. The metal plates include at least one exciting electrode formed on a first surface of the dielectric block which has the widest area.

6850131, Feb 1, 2005

Jul 31, 2002

10/210569

Arun Chandra Kundu - Phoenix AZ, US

TDK Corporation - Tokyo

H01P 120
H01P 1219

333202, 333210, 333212

A highly compact bandpass filter that has excellent mechanical strength is disclosed. A bandpass filter according to the present invention employs a dielectric block of substantially rectangular prismatic shape constituted of a first portion lying between a first cross-section of the dielectric block and a second cross-section of the dielectric block substantially parallel to the first cross-section and second and third portions divided by the first portion and metal plates formed on surfaces of the dielectric block. The first portion of the dielectric block and the metal plates formed thereon are enabled to act as an evanescent waveguide. The second portion of the dielectric block and the metal plates formed thereon are enabled to act as a first resonator. The third portion of the dielectric block and the metal plates formed thereon are enabled to act as a second resonator. The metal plates include an inductive stub formed on the surface of the first portion of the dielectric block.

7312676, Dec 25, 2007

Jul 1, 2005

11/173674

Arun Chandra Kundu - Phoenix AZ, US

TDK Corporation - Tokyo

H01P 1/203

333204, 333205

A filter comprises a band pass filter that may have a first resonator, a second resonator and a coupling between the first resonator and the second resonator. The coupling may be controlled by at least one of (i) a spacing between the first resonator and the second resonator, and (ii) a shunt inductance coupled to the coupling.

2007012, May 31, 2007

Nov 28, 2005

11/288674

Arun Kundu - Phoenix AZ, US

H01P 1/205
H01P 1/203

333203000, 333204000

A bandpass filter includes a combline bandpass filter including tapped-line input and output terminals, at least three resonators, and a loading capacitor for each resonator. The bandpass filter further includes a plurality of loading inductors, each loading inductor being connected between one of the resonators and its respective loading capacitor; and a direct coupling capacitor connected between any two of the at least three resonators that are separated by at least one other resonator. By adding a direct coupling capacitor to a combline bandpass filter, an additional lower-passband side attenuation pole is created. The attenuation and rolloff characteristics of the lower-passband side can be controlled by altering the value of the direct coupling capacitance. By adding loading inductors to a combline bandpass filter, an upper-passband side attenuation pole is created. The attenuation and rolloff characteristics of the upper-passband side can be controlled by altering the value of the loading inductors.

2016022, Aug 4, 2016

Apr 12, 2016

15/097027

- San Diego CA, US
Arun Chandra Kundu - San Diego CA, US
George Alan Wiley - San Diego CA, US
Chulkyu Lee - San Diego CA, US

H04L 12/26
H04L 7/00

In a multi-wire channel that includes at least three wires, each unique wire pair of the multi-wire channel has approximately the same signal propagation time. In this way, jitter can be mitigated in the multi-wire channel for signaling where, for a given data transfer, a differential signal is transmitting on a particular pair of the wires and every other wire is floating. In some implementations, matching of the signal propagation times involves providing additional delay for at least one of the wires. The additional delay is provided using passive signal delay techniques and/or active signal delay techniques.

2015038, Dec 31, 2015

Jun 25, 2014

14/315142

- San Diego CA, US
Arun Chandra Kundu - San Diego CA, US
George Alan Wiley - San Diego CA, US
Chulkyu Lee - San Diego CA, US

H04L 7/00
H04B 3/462
H04B 3/54

In a multi-wire channel that includes at least three wires, each unique wire pair of the multi-wire channel has approximately the same signal propagation time. In this way, jitter can be mitigated in the multi-wire channel for signaling where, for a given data transfer, a differential signal is transmitting on a particular pair of the wires and every other wire is floating. In some implementations, matching of the signal propagation times involves providing additional delay for at least one of the wires. The additional delay is provided using passive signal delay techniques and/or active signal delay techniques.