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May 23 - Monday
8:00 - 17:00
WMH:
E-Band Communications: Market, Technology and IC design
Organizer:
Edmar Camargo, Matthew Poulton
Organizer organization:
QuinStar Technology, Inc., QORVO, Inc.
Abstract:
Abstract
E-band frequencies were allocated for communications more than 30 years ago, but interest in their commercialization did not occur until October 2003 when the FCC released a novel licensing plan for E-band (71 – 76 and 81 – 86 GHz), dedicated to high speed communications in the US. In 2006 the European organization ETSI followed similar actions. The concurrent development of 0.1 um GaAs, SiGe, InP and GaN technologies have in recent years provided impressive results in terms of high power density, low noise and low cost, allowing their application in E-band commercial and military systems for multi-Gb/s data rates in full duplex. Such systems are now being deployed in terrestrial, airborne and space applications. This workshop will cover mmWave transceiver design, focusing on different views of the markets by industry, performance achieved by different technologies, and the latest IC design improvements required by applications at these high frequencies. The transceiver components to be covered include frequency converters, power amplifiers and low noise amplifiers.
Presentations in this session
WMH-6:
Infineon E-band Front End Module for Cost-Optimized Gigabit DataLinks
Authors:
Uwe Rueddenklau, Infineon Technologies AG;
jagjit Singh Bal, Infineon;
Presenter:
Uwe Rueddenklau, jagjit Singh Bal, Infineon Technologies AG, Infineon
Abstract
E-band (70/80GHz) has worldwide availability, is mostly light licensed, interference free, has much wider channel bandwidths (250 MHz and above) available and also low oxygen absorption, allowing much longer hops. Wireless links can be deployed quite quickly compared to optical fiber and also now the technology exists it makes the total cost of ownership of the point-to-point radio link lower than optical fiber. A number of IC manufacturers have developed chip sets for E-Band transceivers, some in Silicon and others in GaAs.
Infineon's mm-wave transceiver product family allows one to send >1 GB/s data rates over a wireless mm-wave link. Infineon's RF expertise and technology capability enable more applications such as Radar and Sensing. Infineon´s own fabricated SiGe technologies is used to realize cost-optimised and integrated packaged single chip mm-wave transceivers.
By co-developing the chip and package using eWLB (embedded Wafer-Level Ball Grid Array), Infineon realizes a compact design in a plastic housing.
This presentation will discuss the radio link design and performance that can be achieved at E-Band with a front-end design using Infineon SiGe transceivers including the following topics:
- E-BAND MARKET VIEW and OUTLOOK
- E-BAND TRANSCEIVER and FRONT-END-MODULES
- EVALUATION BOARD FOR E-BAND FRONT-END-MODULE
- FRONT-END-MODULE PERFORMANCE
- CONCLUSION
WMH-8:
Trade-offs in the Design of E-band Transceiver MMICs for Gigabit Wireless Link Application
Authors:
suhill Kumar, GigOptix;
Presenter:
suhill Kumar, GigOptix
Abstract
The popularity of multimedia applications and broadband internet has created an ever increasing demand for achieving higher throughputs in cellular and wireless networks. Thus far, microwave (up to 43GHz) wireless point-to-point links have been playing an important role in carrying a large portion of this data by interconnecting cellular base stations or enterprise buildings. There is continuing exponential growth of subscriber throughout the world and ODU vendors are looking for solution that can help to upgrade to next generation cellular networks that supports throughput comparable to fiber-optic links (Gbps) at low cost with fast deployment.
E-band based network are very attractive for such multi-Gigabit per second (Gbps) wireless links due to availability of 10GHz spectrum in the 70 and 80 GHz band. Gigoptix is working on a complete Tx/Rx chip set solution employing various technologies such as GaAs and SiGe in a SiP (system in package). This approach provides the best of GaAs and SiGe technology performance for Tx and Rx in a SiP, thus the developed solution can handle a complex modulation scheme such as 64QAM with 1GHz bandwidth.
This presentation will discuss about various IC technologies available for E-band such as GaAs/GaN and SiGe and their tradeoffs for various circuit design such as Power Amplifier, Mixer, and LNA etc for developing an E-band Transceiver chipset. In addition to chipset development at MMIC level, some aspect of low cost and high performance of packaging such as SiP will also be covered.
May 24 - Tuesday
8:20 - 8:40
TU1A:
Transmission Lines for System Applications
Chair:
Luca Perregrini
Chair organization:
Univ. of Pavia
Co-chair:
Tatsuo Itoh
Co-chair organization:
Univ. of California, Los Angeles
Location:
303
Abstract:
New transmission line structures and phenomena are presented to enable system applications.
Presentations in this session
TU1A-2:
Tunable dielectric delay line phase shifter based on liquid crystal technology for a SPDT in a radiometer calibration scheme at 100 GHz
Authors:
Matthias Jost, Technische Univ. Darmstadt (Germany);
Roland Reese, Technische Univ. Darmstadt (Germany);
Christian Weickhmann, Technische Univ. Darmstadt (Germany);
Christian Schuster, Technische Univ. Darmstadt (Germany);
Onur Karabey, Technische Univ. Darmstadt (Germany);
Holger Maune, Technische Univ. Darmstadt (Germany);
Rolf Jakoby, Technische Univ. Darmstadt (Germany);
Presenter:
Matthias Jost, Technische Univ. Darmstadt, Germany
Abstract
This paper presents an electrically tunable dielectric line based on a fiber topology. A fiber segment is filled with liquid crystal (LC) for continuously tuning the differential phase between 0°-90° by an applied biasing voltage. This tunable dielectric delay line phase shifter is aimed to be implemented into a RF switch (SPDT), to switch between the calibration loads and the antenna of a radiometer at 100GHz. A subwavelength topology was chosen, where compared to classical dielectric waveguides, air is acting as cladding material, ensuring a low loss propagation comparable to hollow waveguides. The phase shifting section has a total length of 26mm and provides a maximum differential phase shift of more than 107° and 115° at 100GHz for electric and magnetic biasing, respectively. Accompanied with insertion losses between 2.5-3.0dB, the phase shifter shows a figure of merit of 42°/dB for the electric and 44°/dB for the magnetic biasing.
8:00 - 8:20
TU1C:
Multi-GHz Frontend Circuits for Digital Applications
Chair:
Hermann Boss
Chair organization:
Rohde & Schwarz GmbH & Co KG
Co-chair:
Gregory Lyons
Co-chair organization:
Massachusetts Institute of Technology, Lincoln Laboratory
Location:
305
Abstract:
This session presents 5 papers that address the performance and data throughput enhancements of Multi-GHz frontend circuits.
A new SiGe MOS-HBT quasi CML switch is introduced and a differential feedthrough cancellation technique is applied in a T&H; amplifier. The session is continued with papers on InP technology for MUX modules and a linear differential amplifier and a feed forward equalizer.
Presentations in this session
TU1C-1:
A 108GS/s Track and Hold Amplifier with MOS-HBT Switch
Authors:
Konstantinos Vasilakopoulos, Univ. of Toronto (Canada);
Andreia Cathelin, STMicroelectronics (France);
Pascal Chevalier, STMicroelectronics (France);
Thelinh Nguyen, Finisar (United States);
Sorin Voinigescu, Univ. of Toronto (Canada);
Presenter:
Konstantinos Vasilakopoulos, Univ. of Toronto, Canada
Abstract
A 108GS/s track-and-hold amplifier manufactured in a 55nm SiGe BiCMOS technology achieves 40GHz bandwidth with THD and SFDR of -49 dB and 55 dB, respectively. This performance is made possible by the use of a new MOS-HBT quasi-CML switch operating in class-AB mode, which results in an overall power consumption of 87 mW from 2.5V and 1.8V power supplies, respectively. The circuit targets time-interleaved ADC front-ends in next generation 64Gbaud fiber-optic receivers.
14:10 - 14:30
TU3D:
Advances in Terahertz Photonics
Chair:
Mona Jarrahi
Chair organization:
Univ. of California, Los Angeles
Co-chair:
Jeffrey Nanzer
Co-chair organization:
Johns Hopkins Univ.
Location:
306
Abstract:
This session gives an overview on recent advancements in terahertz photonics. Novel techniques for generation, detection, and manipulation of terahertz waves are presented.
Presentations in this session
TU3D-3:
High-Power, Broadband Terahertz Radiation from Large Area Plasmonic Photoconductive Emitters Operating at Telecommunication Optical Wavelengths
Authors:
Nezih Yardimci, Univ. of California, Los Angeles (United States);
Mona Jarrahi, Univ. of California, Los Angeles (United States);
Presenter:
Nezih Yardimci, Univ. of California, Los Angeles, United States
Abstract
We present a high-power, broadband terahertz emitter that operates at telecommunication optical pump wavelengths at which high-performance and compact fiber lasers are commercially available. The presented terahertz emitter is a novel large area photoconductive emitter that utilizes a two-dimensional array of plasmonic nano-antennas fabricated on an ErAs:InGaAs substrate to offer significantly higher terahertz radiation powers compared to the state-of-the art. We demonstrate record-high terahertz radiation power levels as high as 300 µW over a 0.1 – 5 THz frequency range, exhibiting two orders of magnitude higher efficiencies compared to state-of-the art photoconductive terahertz emitters operating at telecommunication optical pump wavelengths.
May 26 - Thursday
9:00 - 11:00
THIF1:
Interactive Forum - Thursday Morning
Location:
301 & 302
Presentations in this session
THIF1-5:
Nondestructive Reflection Imaging in the W-band Using Photonics-Based Incoherent Signal Source
Authors:
Atsushi Kanno, National Institute of Information and Communications Technology (Japan);
Norihiko Sekine, National Institute of Information and Communications Technology (Japan);
Akifumi Kasamatsu, National Institute of Information and Communications Technology (Japan);
Naokatsu Yamamoto, National Institute of Information and Communications Technology (Japan);
Mitsuru Yoshida, NEC Network and Sensor Systems, Ltd. (Japan);
Norio Masuda, NEC Network and Sensor Systems, Ltd. (Japan);
Presenter:
Atsushi Kanno, National Institute of Information and Communications Technology, Japan
Abstract
Radio-based nondestructive imaging is demonstrated with photonics-based signal source. Photonics technology has advantages on use of an amplified spontaneous emission noise from an optical amplifier utilized as an incoherent signal and easy distribution feature via an optical fiber network. fiber-remoted optical-to-millimeter-wave converter irradiates 90-GHz radio waves based on an optical fiber network technology. Low-loss optical fibers enable scalability to increase of a number of converters and flexibility of location configuration of illuminators. Reflection imaging is performed in a 90-GHz band under single and multi-illumination configuration. Obtained images are consistent with theoretical resolution.
THIF1-6:
Integrating Baseband-over-fiber and Six-Port Direct Modulation for High-Speed High-Frequency Wireless Communications
Authors:
Xiaoxiong Song, Beijing Univ. of Posts and Telecommunications (China);
Jianqiang Li, Beijing Univ. of Posts and Telecommunications (China);
Yuting Fan, Beijing Univ. of Posts and Telecommunications (China);
Yi Lei, Beijing Univ. of Posts and Telecommunications (China);
Feifei Yin, Beijing Univ. of Posts and Telecommunications (China);
Yitang Dai, Beijing Univ. of Posts and Telecommunications (China);
Kun Xu, Beijing Univ. of Posts and Telecommunications (China);
Presenter:
Xiaoxiong Song, Beijing Univ. of Posts and Telecommunications, China
Abstract
A complete scheme by integrating baseband-over-fiber link and six-port direct modulation is proposed and experimentally demonstrated for downlinks in future high-speed high-frequency wireless communications systems. GaAs MESFET RF switches are used to interface the baseband in-phase (I) and quadrature (Q) signals to six-port modulator. The baseband I and Q signals are transported over parallel single-mode fiber (SMF) links with the help of commercial low-cost digital optics. The proposed scheme features low cost, low complexity and low power consumption in particular for high-speed high-frequency wireless communications. 120 Mbaud quadrature phase shift keying (QPSK) signals at 19 GHz are generated and evaluated after transmission over up to 10 km SMF. The experimental results show insignificant degradation by introducing baseband-over-fiber links, especially for larger local oscillator power. Due to baseband-over-fiber transmission, the performance holds as the fiber length goes to 10 km from 2 km.
THIF1-7:
Modeling and Digital Predistortion Based on Zernike Polynomial Functions for LTE-RoF System
Authors:
Carlos Mateo, Univ. de Zaragoza (Spain);
Pedro L. Carro, Univ. de Zaragoza (Spain);
Paloma Garcia-Ducar, Univ. de Zaragoza (Spain);
Jesus de Mingo, Univ. de Zaragoza (Spain);
Jose-Ramon Perez-Cisneros, Univ. de Zaragoza (Spain);
Presenter:
Jose-Ramon Perez-Cisneros, Univ. de Zaragoza, Spain
Abstract
A novel modeling technique is proposed to improve the Radio over fiber (RoF) modeling and the Predistorter identification. This method is based on an orthogonal basis composed by Zernike polynomials, whose features guarantee numerical stability, a problem present in the classical polynomial model based on Volterra series. The measurements have been carried out with a LTE downlink signal with a bandwith of 3 MHz and QPSK modulation. The DFB laser has been biasing with 40, 70 and 100 mA to compare the distortion effects in each case. The measurements confirm that the RoF and PA modeling has an important improvement in terms of the ACEPR. In order to the DPD, the results show that the new technique reach an improvement of 2.57 dB in order to the ACPR, as well as an increase in the channel power.
THIF1-8:
Integrated Implementation of Ultra Stable VCO using Optical Self-ILPLL Techniques
Authors:
Tianchi Sun, Drexel Univ. (United States);
Li Zhang, Synergy Microwave Corp (United States);
Kevin Receveur, Drexel Univ. (United States);
Ajay Poddar, Synergy Microwave (United States);
Ulrich Rohde, Synergy Microwave Corp (United States);
Afshin Daryoush, Drexel Univ. (United States);
Presenter:
Tianchi Sun, Drexel Univ., United States
Abstract
A cost effective realization of optically Self-ILPLL of a state of the art phase locked DRO system at 10GHz in a 19’’
rack mountable box is realized with phase noise of -135dBc/Hz at 10 kHz offset carrier. Long optical delay lines of 3km and 5km are respectively used for achieving self-dual phase locking (SPLL) and self-injection locking (SIL) at 10GHz. Phase noise of this DRO is reduced from -83.0dBc/Hz to -104.5dBc/Hz at 1kHz offset using a SIL (1km) and dual-SPLL (3 and 5km) as an optical DSILPLL. The fiber optic delay line performances and their attributed residual phase noise are compared in terms of attained noise figure. The low-cost integrated DFB with Electro-Absorption Modulator (EAM-LD) resulted in 45dB noise figure, whereas single electrode and push-pull amplified dual electrodes Mach-Zehnder Modulator (MZM) resulted in noise figures of 44dB and 32dB, respectively using large linewidth DFB lasers.
THIF1-10:
Frequency Chirp Modulation by Electro-Optic Modulator Integrated with Microwave Rat-Race Circuit and Measurement of Chirp Parameter by Using Optical fiber Dispersion
Authors:
Ryota Nakamura, Univ. of Hyogo (Japan);
Katsuyuki Yamamoto, Univ. of Hyogo (Japan);
Tadashi Kawai, Univ. of Hyogo (Japan);
Akira Enokihara, Univ. of Hyogo (Japan);
Naokatsu Yamamoto, National Institute of Information and Communications Technology (Japan);
Tetsuya Kawanishi, Waseda Univ. (Japan);
Presenter:
Ryota Nakamura, Univ. of Hyogo, Japan
Abstract
The rat-race (RR) circuit, which operates as a 180-degree hybrid, with an asymmetric power split ratio was integrated with the dual electrode type electro-optic modulator on the same substrate. Thereby, frequency chirp modulation with a compact configuration was realized. The RR circuit was designed with 4.5:1 power split ratio on a z-cut LiNbO3 substrate. The operation of the modulator was confirmed by observing the output light spectra. Moreover, we directly measured the chirp parameter by using the chromic dispersion of the optical fiber. The power penalty of the detected modulation signals transmitted through optical fiber was observed as a function of the fiber distance. The chirp parameter of the modulated light at 10 GHz was estimated at 0.47.
THIF1-30:
A Digital Radio-over-fiber Downlink System based on Envelope Delta-sigma Modulation for Multi-band/mode Operation
Authors:
Shinichi Hori, NEC Corp. (Japan);
Tomoyuki Yamase, NEC Corp. (Japan);
MASAAKI TANIO, NEC Corp. (Japan);
Tomoya Kaneko, NEC Corp. (Japan);
Noriaki Tawa, NEC Corp. (Japan);
Keiichi Motoi, NEC Corp. (Japan);
KAZUAKI KUNIHIRO, NEC Corp. (Japan);
Presenter:
Tomoyuki Yamase, NEC Corp., Japan
Abstract
A digital radio-over-fiber (DRoF) downlink system using envelope delta-sigma modulation (EDSM) for multi-mode/band applications is presented. Analyses and simulations reveal that the EDSM scheme increases tolerance to jitter introduced by optical components. This has been verified and demonstrated with a DRoF link using CMOS EDSM IC. As a result of the improvement, this system successfully meets major 3GPP LTE bands from 760 MHz to 2.6 GHz as well as IEEE 802.11g WLAN standard requirement.
14:20 - 14:30
TH3C:
Advances in Microwave Photonics
Chair:
John Xiupu ZHANG
Chair organization:
Concordia Univ.
Co-chair:
Jeffrey Nanzer
Co-chair organization:
Johns Hopkins Univ.
Location:
305
Abstract:
This session focuses on recent technological advances in microwave photonics devices and systems. Papers present novel modulation techniques for high speed coherent fiber transmission and new methods for optical sub-carrier modulation with high linearity.
Presentations in this session
TH3C-4:
Linearization of Radio-over-fiber Systems Using Directly Modulated and Electro-Absorption Modulator Integrated Lasers
Authors:
Ran Zhu, Concordia Univ. (Canada);
Xiupu Zhang, Concordia Univ. (Canada);
Dongya Shen, Concordia Univ. (Canada);
Presenter:
Xiupu Zhang, Concordia Univ., Canada
Abstract
A low-cost linearization technique is proposed to improve RF signal power and suppress third order intermodulation distortion (IMD3) in radio-over-fiber (RoF) transmission systems. A directly modulated laser (DML) and an electro-absorption modulator integrated laser (EML) in C-band are used for optical subcarrier modulation. The IMD3s induced by the two optical subcarrier modulations are suppressed by each other through adjusting the bias voltage of the electro-absorption modulator in the EML. In our initial experiments, the spurious free dynamic range (SFDR) is improved by more than 3.5 dB and output power at 1 dB compression point is improved by 4.3 dB.