David Klotzkin, Kishore Kamath, Karen Vineberg, Pallab Bhattacharya, Ramana Murty, Joy Laskar
Abstract — Measurements of the threshold current, slope efficiency and optical modulation characteristics of self-assembled InGaAs–GaAs quantum-dot lasers have been made in the temperature range...
Ronglin Li, Senior Member, Bo Pan, Joy Laskar, Manos M. Tentzeris, Senior Member
Abstract—A compact broadband planar antenna is developed
Design and Modeling ofEmbedded 13.56MHzRFID Antennas (2008)
S. Serkan Basat, Kyutae Lim, Joy Laskar, Manos M. Tentzeris
Radio Frequency IDentification (RFID) Tags have become quite widespread in many services in the industry such as access control, parcel and document tracking, distribution logistics, automotive...
Nan Marie Jokerst, Martin A. Brooke, Joy Laskar, D. Scott Wills, April S. Brown, Mary Ann Ingram
Multidisciplinary team-oriented research is an effective method for investigating systems spanning multiple knowledge areas. Building on cross-functional team strategies developed for highly...
Jong-hoon Lee, Student Member, Nobutaka Kidera, Gerald Dejean, Student Member, Stéphane Pinel, ...
Abstract—This paper presents a compact system-on-packagebased front-end solution for 60-GHz-band wireless communication/sensor applications that consists of fully integrated three-dimensional (3-D)...
System-on-a-Package (SOP) Substrate and Module with Digital, RF and Optical Integration (2008)
Venky Sundaram, Rao Tummala, George White, Kyutae Lim, Lixi Wan, Daniel Guidotti, ...
The Packaging Research Center has been developing next generation system-on-a-package (SOP) technology with digital, RF, and optical system integration on a single package. SOP aims to utilize the...
Bandwidth and Gain Improvement of a Circularly Polarized Dual-Rhombic Loop Antenna (2008)
Ronglin Li, Senior Member, Anya Traille, Joy Laskar, Manos M. Tentzeris, Senior Member
Abstract—In this letter, we present a novel way to improve the performance of a circularly polarized (CP) dual-rhombic loop antenna. The bandwidth is enhanced by adding a pair of parasitic rhombic...
Ronglin Li, Senior Member, Gerald Dejean, Emmanouil Tentzeris, Senior Member, John Papapolymerou, ...
Abstract-- The surface-wave diffraction at the edge of a finite size substrate with a high dielectric constant is the dominant mechanism affecting the radiation pattern of a patch antenna fabricated...
Nathan Bushyager, Mekita Davis, Edan Dalton, Joy Laskar, Manos Tentzeris
This paper presents methods using time domain electromagnetic modeling techniques to characterize passive devices in packaging structures. Particularly, the Q of a novel multilayer inductor is...
Jong-hoon Lee, Nobutaka Kidera, Stephane Pinel, Joy Laskar, Manos M. Tentzeris
Abstract- In this paper, an aperture-coupled patch antenna integrated with a soft surface and the stacked cavity has been demonstrated on LTCC multilayer technology. A higher gain ( ~ 7.6 dBi) is...
A Circularly Polarized Short Backfire Antenna Excited by an Unbalance-Fed Cross Aperture (2008)
Ronglin Li, Senior Member, Dane C. Thompson, Student Member, John Papapolymerou, Senior Member, ...
Abstract—An unbalance-fed cross aperture is developed to excite a short backfire antenna (SBA) for circular polarization. The cross aperture consists of two orthogonal H-shaped slots with a pair of...
Ronglin Li, Senior Member, Nathan A. Bushyager, Joy Laskar, Manos M. Tentzeris, Senior Member
Abstract—A simple theory is presented to predict the lumped reactance loading for circularly polarized circular loop antennas with a uniform traveling-wave current distribution. The reactive load...
A New Excitation Technique for Wideband Short Backfire Antennas (2008)
Ronglin Li, Dane Thompson, John Papapolymerou, Joy Laskar, Manos M
Abstract ⎯ A new excitation technique is developed to improve the impedance bandwidth and to lower the manufacturing cost of a short backfire antenna (SBA). The new excitation structure consists of...
Comparative Study of Feeding Techniques for Three-Dimensional Cavity Resonators at 60 GHz (2008)
Jong-hoon Lee, Student Member, Stéphane Pinel, John Papapolymerou, Senior Member, Joy Laskar, ...
Abstract—In this paper, various topologies of feeding structures are comparatively evaluated for 60-GHz three-dimensional integrated cavity resonators used in three-dimensional integrated RF...
Design of Experiments Technique for Microwave / Millimeter Wave Flip Chip Optimization (2008)
Daniela Staiculescu, Joy Laskar, Manos Tentzeris
We present a design of experiments (DOE) technique for microwave/millimeter wave flip chip characterization and optimization. Two optimization approaches, signal bump misalignment and transmission...
Broadband Circularly Polarized Rectangular Loop Antenna With Impedance Matching (2008)
Ronglin Li, Senior Member, Joy Laskar, Manos M. Tentzeris, Senior Member
Abstract—A broadband circularly polarized rectangular loop antenna is developed. The broadband performance is achieved by adding a pair of parasitic loops inside the rectangular loop. Good...
Fully Integrated Passive Front-End Solutions for a V-band LTCC Wireless System (2008)
Jong-hoon Lee, Student Member, Nobutaka Kidera, Stephane Pinel, Joy Laskar, Manos M. Tentzeris, ...
Abstract—A novel topology implementing a 3-D fully integrated filter and antenna function is proposed as a system-on-package (SOP) compact front-end solution for the low-temperature cofired ceramic...
Novel Feeding Topologies for 2nd Harmonic Suppression in Broadband Microstrip Patch Antennas (2008)
Il Kwon Kim, Jeong-il Kim, Stephane Pinel, Joy Laskar, Manos M. Tentzeris, Jong-gwan Yook
Abstract- In this paper, a fractal parallel coupled-line feeding structure is proposed to realize the 2 nd harmonic suppression property, while allowing for a broadband operation of microstrip patch...
978 V-band Integrated Filter and Antenna forLTCC Front-End modules (2008)
Jong-hoon Lee, Nobutaka Kidera, Stephane Pinel, Joy Laskar, Manos M. Tentzeris('l
Abstract- In this paper, fully integrated filter and antenna functions are demonstrated as a system-on-package (SOP) compact front-end solution for the low-temperature cofired ceramic (LTCC) based...
System-On-Package Technology (2008)
Valeria Palazzari, Stéphane Pinel, Joy Laskar, Senior Member, Luca Roselli, Senior Member, ...
Abstract—A single–input–single–output (SISO) dual-band filter
Linear Tapered Slot Antennas on LTCC Substrate for Millimeter-wave Applications (2008)
Il Kwon Kim, Stephan Pinel, John Papapolymerou, Manos M. Tentzeris, Joy Laskar, Jong-gwan Yook
Abstract- In this paper, one linear tapered slot antenna (LTSA), backed with an air cavity, is proposed and fabricated on low temperature cofired ceramic (LTCC) substrate. Conventionally, when LTSA...
Ronglin Li, Senior Member, Gerald Dejean, Student Member, Joy Laskar, Manos M. Tentzeris, ...
Abstract—It is demonstrated that the bandwidth of circular polarization (CP) can be significantly increased when one more parasitic loop is added inside the original loop. A single-loop antenna has...
Linear Tapered Cavity-Backed Slot Antenna for Millimeter-Wave LTCC Modules (2008)
Il Kwon Kim, Student Member, Nobutaka Kidera, Stephane Pinel, John Papapolymerou, Senior Member, ...
Abstract—In this letter, a linear tapered slot antenna (LTSA) which is backed by an air cavity is proposed and fabricated using low temperature cofired ceramic (LTCC) substrate. Traditionally, the...
Dr. John Papapolymerou Advisor, Dr. Joy Laskar
To my beloved family! iii ACKNOWLEDGEMENTS First, I would like to express my deepest gratitude to my advisor, Professor John Papa-polymerou, for his support, faith, superb and patient guidance,...
Analysis of Device Scaling towards the performance enhancement of Si-MOSFET RF amplifiers (2005)
Sen, Padmanava, Srirattana, Nuttapong, Raghavan, Arvind, Laskar, Joy
This paper explains the importance of device size and dc bias conditions for the gain and linearity performance enhancement of silicon based RF amplifiers. In this work, the existence of an optimum...
A 60-GHz Push-Push InGaP HBT VCO With Dynamic Frequency Divider (2005)
Lee, Ockgoo, Kim, Jeong-Geun, Lim, Kyutae, Laskar, Joy, Hong, Songcheol
We present a 60-GHz push-push voltage-controlled oscillator (VCO) with dynamic frequency divider, which is implemented in an InGaP/GaAs heterojunction bipolar transistor technology. A common-base...
Development of a wideband short backfire antenna excited by an unbalance-fed H-shaped slot (2005)
Ronglin Li, Dane Thompson, Student Member, Manos M. Tentzeris, Joy Laskar, John Papapolymerou, ...
Abstract—The short backfire antenna (SBA) has been widely used for mobile satellite communications, tracking, telemetry, and wireless local-area network applications due to its compact structure...
An active interference canceller for multistandard collocated radio,” presented at the (2005)
Edward Gebara, Manos Tentzeris, Joy Laskar
Abstract — This paper proposes a novel active interference cancellation system that allows simultaneous operation of multistandard collocated radios. It addresses specifically, the coexistence...
Tentzeris, “Low loss LTCC cavity filters using system-on-package technology at 60 GHz (2005)
Jong-hoon Lee, Student Member, Stephane Pinel, John Papapolymerou, Joy Laskar, Manos M. Tentzeris, ...
Abstract – In this paper, three-dimensional (3-D) integrated cavity resonators and filters consisting of via walls are demonstrated, as a system-on-package (SOP) compact solution for RF front-end...
Analysis and design of an interference canceller for collocated radios (2005)
Student Member, Edward Gebara, Emmanouil M. Tentzeris, Senior Member, Joy Laskar
Abstract—An active interference cancellation scheme is presented to mitigate interference between Bluetooth and wireless local area network (IEEE 802.11 b) radios operating in close proximity. This...
M.M.Tentzeris, “Highly Integrated Millimeter-Wave Passive Components Using 3-D (2005)
Jong-hoon Lee, Gerald Dejean, Student Member, Student Member, Saikat Sarkar, Stephane Pinel, ...
Abstract – In this paper, we demonstrate the development of advanced 3-D low-temperature cofired ceramic (LTCC) system-on-package (SOP) passive components for compact, low cost millimeter-wave...
RongLin Li, Gerald Dejean, Manos M. Tentzeris, John Papapolymerou, Joy Laskar
Abstract ⎯ The radiation performance of patch antennas on a large-size substrate can be significantly degraded by the diffraction of surface waves at the edge of the substrate. Most of modern...
Raghavan, Anand, Jalan, Umesh, Chakraborty, Sudipto, Lee, Chang-Ho, Laskar, Joy, Chen, Emery, ...
This paper outlines the design and implementation of a monolithic millimeter-wave low noise amplifier (LNA) fabricated in a 200 GHz SiGe HBT technology. A simple analytical model of electromagnetic...
Manos M. Tentzeris, Senior Member, Joy Laskar, Senior Member, John Papapolymerou, Senior Member, ...
Abstract—Electronics packaging evolution involves system, technology, and material considerations. In this paper, we present a novel three-dimensional (3-D) integration approach for...
Development and Analysis of a Folded Shorted-Patch Antenna with Reduced Size (2004)
Ronglin Li, Gerald Dejean, Student Member, Manos M. Tentzeris, Joy Laskar, Senior Member, ...
The length of a wall-shorted rectangular patch antenna can be reduced from 0 4 to 0 8 by a simple folding operation, which results in a stacked shorted-patch (S-P) structure with a resonant frequency...
Is Published Monthly By: (2002)
Up Media Group, All Rights Reserved, Daniela Staiculescu, Kyutae Lim, Albert Sutono, Hongwei Liang, ...
This article will summarize the advantages and the drawbacks of flip-chip vs. the widely used wirebond for microwave and millimeter-wave (mmwave) applications, and how these affect the job of...
RF-System-On-Package (SOP) for Wireless Communications (2002)
Kyutae Lim, Stephane Pinel, Mekita Davis, Albert Sutono, Chang-ho Lee, Deukhyoun Heo, ...
Anew industrial revolution, often called the “third wave ” or information technology (IT), is in the making. The products of this revolution will require entirely different systems hardware...
A Compact LTCC-Based Ku-Band Transmitter Module (2002)
Chang-ho Lee, Albert Sutono, Sangwoo Han, Kyutae Lim, Stephane Pinel, Emmanouil M. Tentzeris, ...
In this paper, we present design, implementation, and measurement of a three-dimensional (3-D)-deployed RF front-end system-on-package (SOP) in a standard multi-layer low temperature co-fired ceramic...
Integrated RF Architectures in Fully-Organic SOP Technology (2002)
Mekita F. Davis, Albert Sutono, Sang-woong Yoon, Student Member, Soumyajit Mandal, Nathan Bushyager, ...
Future wireless communications systems require better performance, lower cost, and compact RF front-end footprint. The RF front-end module development and its level of integration are, thus,...
Theoretical investigation of breakdown effects in wide band gap semiconductor materials (2002)
Brennan, Kevin F., Bellotti, E. (Enrico), Farahmand, Maziar, Ruden, P. Paul, Albrecht, John D., ...
Issued as final report
Albert Sutono, N. Gio Cafaro, Joy Laskar, Manos M. Tentzeris
We present the first comprehensive experimental characterization of bond wire interconnects at microwave frequencies which includes a repeatability study, modeling and optimization. Wire bond...
Development of millimeter-wave cryogenic on-wafer noise techniques (2000)
Issued as final report
and M.Tentzeris, ”Design Rule Development for Microwave Flip–Chip Applications (2000)
Daniela Staiculescu, Joy Laskar
Abstract—This paper presents a novel experimental approach for the analysis of factors to be considered when designing a flip-chip package. It includes the design of an experiment and statistical...
Flip Chip Design Rule Development for Multiple Signal and Ground Bump Configurations (2000)
Daniela Staiculescu, Joy Laskar, Manos Tentzeris
This paper presents a novel approach for analysis of factors to be considered when designing a flip chip package. The analysis is focused on the use of multiple signal and ground bumps and...
Development of millimeter-wave cryogenic on-wafer noise techniques (2000)
Issued as final report
Development of temperature dependent load-pull analysis techniques (1999)
Gebara, Edward, Heo, Deukhyoun, Laskar, Joy, Harris, Mike
Cryogenic on-wafer load-pull measurements are performed on GaAs MESFET (Lg=0.6um, W=300um and Lg=1.0nm, W=300um) power devices at 300K, 200K and 15K to demonstrate their performance improvement in...
Optoelectronic Computer-Aided Design Models (1998)
This program has focused upon two areas: 1) development of computer aided design models for RF/optical links and 2) development of low cost, wide bandwidth optoelectronic integrated circuits. We have...
Analysis and performance of BGA interconnects for RF packaging (1998)
Issued as final report
Analysis and performance of BGA interconnects for RF packaging (1998)
Issued as final report