Indium phosphide photonic circuits on silicon electronics

The intimate integration of photonics and electronics in transceivers facilitates energy-efficiency, bandwidth acceleration and a route to radical miniaturization. We present and implement a wafer-to-wafer integration method which combines electronic and photonic foundry technologies

Porttiteatteri – teatteritoiminta toimijuuden ja osallisuuden vahvistajana : ”Se on antanu mulle ja monelle muulle tavallaan elämän takaisin.”

Opinnäytetyön tilasi Porttiteatteri ry ja tavoitteena oli tutkia Porttiteatteriin osallistuneiden päihde- ja lainrikkojataustaisten kokemuksia toimintakyvyn ja toimijuuden muutoksesta, osallisuuden ja yhteisöllisyyden sekä vertaisuuden kokemuksia teatteritoiminnan kautta. Lisäksi tutkin Porttiteatterin merkitystä osallistujien urapolkujen mahdollistaja. Opinnäytetyöni teoreettinen viitekehys koostuu sosiaalisen pääoman, osallisuuden ja yhteisöllisyyden sekä voimaantumisen käsitteistä, lisäksi teoria pitää sisällään sosiaalisen kuntoutuksen toimintakyvyn ja toimijuuden vahvistajana sekä desistanssin ja stigmatisaation käsitteet. Porttiteatteri on vankilateatteri toimintaa vankilasta vapautuneille ja koevapaudessa oleville teatterialan ammattilaisten vetämänä. Toiminta on julkista tarjoten vankilasta vapautuville henkilöille mahdollisuuden omien voimavarojen löytämiseen sekä mahdollisuuden yhteisöllisyyteen teatterin keinoin. Opinnäytetyön toteutin laadullisena tutkimuksena, jossa puolistrukturoitu teemahaastattelu valikoitui aineistonkeruumenetelmäksi. Opinnäytetyötä varten haastateltiin seitsemää Porttiteatteri-toimintaan osallistunutta rikos- ja päihdetaustaista ja kahta teatterialan ammattilaista. Lisäksi toteutettiin lomakekysely Joulutarinoita- esitysten yleisölle. Sisällön analyysimenetelmänä käytin sisällönanalyysia. Tulokset kertovat, Porttiteatteri-toiminnalla olevan myönteinen merkitys siihen osallistuneiden sosiaaliseen pääomaan, osallisuuden sekä toimintakyvyn- sekä toimijuuden muutoksiin, että elämän eri osa-alueisiin, minäkuvaan sekä rikoksettoman ja päihteettömän elämäntavan ylläpitoon. Opinnäytetyö tarjoaa informaatiota Porttiteatteri-toiminnan merkityksestä rikos- ja päihdetaustaisten sosiaalisen pääoman muutoksista, osallisuuden ja elämän eri osa-alueilla sekä osallistujien kokemuksia stigmatisaatiosta ja rikollisuudesta irrottautumisesta. Lisäksi se tarjoaa tärkeää tietoa rikosseuraamusalan toimijoille vankiteatterin kuntouttavasta merkityksestä.Porttiteatteri ry ordered this Bachelor’s thesis. The aim of this Bachelor’s thesis was to examine how drama and theatre activities affected the experiences of the participants of Porttiteatteri regarding changes in functional ability and overall activity; participation and sense of community; and peer support. In addition, theatre as a means of empowering career paths was also studied. Porttiteatteri is a prison theatre activity for ex-prisoners and those in supervised probationary freedom guided by theatre professionals. It is a public activity which offers those released from prison possibilities to find new resources and possibilities to experience a sense of community through theatre. The theoretical framework of this research includes the concepts of social capital, particiption, sense of community and empowerment. In addition, framework includes social rehabilitation for strengthening functional ability and overall activity together with concepts of desistance and stigmatisation. This thesis was conducted as qualitative research in which semi-structured themed interviews were used as a research method. In all, seven theatre participants with criminal or substance abuse backrounds and two theatre professionals were interviewed. A questionnaire was also conducted aimed at the audience of seven of the groups performances. The material was analysed using content analysis. The results showed that the Porttiteatteri activities had a positive significant effect on the participants’ social capital and changes in their functional ability and overall activity and on various aspects of their lives; in addition, the activities improved selfimage which helps maintain a lifestyle without crime and intoxicants

LC-notch-filters less sensitive to LTCC process tolerances

\u3cp\u3eA new design procedure for low temperature coflred ceramics integrated single inductance-capacitance (LC)-notch filters is described that minimizes the shift in resonance frequency due to process variations such as layer thickness and line-width variations. 25-μm thin layers of dielectric constant 7.8 and 17.9 were used for the experimental verification and further miniaturization of the layout. A two to five-fold reduction of the resonance frequency uncertainty was achieved compared to conventional designs. Application of these new single LC-notch filters in Bluetooth radio frequency-front-end modules is discussed.\u3c/p\u3

A 60 GHz low power self-mixing receiver in 65-nm CMOS for a radio-triggered battery-less monolithic wireless sensor

With the growing attention at 60 GHz ISM band on millimeter-wave therapy for diseases treatment of sedative, anti-inflammatory actions or immune system stimulation, growing demand for new biomedical monitoring and treating systems with more bandwidth, high data rates and low power creates new challenges for 60 GHz body area network. Most smart wireless sensors wireless sensing operates on battery, which limits their life-time. To overcome this limitation, a system of radio-triggered batteryless monolithic wireless sensor based on mm-wave wireless power transfer technique is introduced in this work. From the system power budget analysis, it could support 10 bits communication within 10 cm, which would be sufficient for mm-wave wireless sensing application. Furthermore, it is identified that the receiver is power limited. Based on the system evaluation, an injection locked oscillator based self-mixing receiver is presented. In this architecture, the IJLO based LO scheme is used to save receiver power consumption. The sensitivity of the receiver is improved by applying the IJLO into the self-mixing architecture. This single chip receiver is implemented in a 65 nm CMOS technology. The DC power consumption of this receiver is only 16.4 mA from 1 V power supply. This power consumption is lower than other mm-wave receivers, which is an important step towards fully integrated monolithic sensor nodes

Power reduced monolithic wireless sensor

Future wireless sensor networks require reliable, batteryless, miniaturized, low-cost sensor nodes with ultralow power consumption. Remote RF powering provides a reliable wireless power source for such monolithically integrated sensor nodes. Combining highly integrated ultralow power millimeter-wave (mm-wave) sensing, wireless power transfer, and on-chip antenna is a path toward batteryless, fully monolithically integrated, millimeter-sized sensor nodes with only a few milligrams of weight. In this paper, a passive fully integrated monolithic wireless sensor for mm-wave sensing is presented in a 65-nm CMOS technology, including an on-chip wireless power receiver, on-chip antenna, and a low-power transmitter

56 Gb/s PAM-4 optical modulator driver for 3D wafer scale packaging

In this poster, an optical modulator driver which is designed for electronic and photonic wafer scale packaging is presented. By using the polymer adhesive bonding technique, Silicon Electronic Integrated Circuits (EICs) bond to the InP Photonic Integrated circuits (PICs) on the wafer scale. Small through polymer vias (TPVs) connect EICs to the PICs which reduces the parasitics and improves the maximum date rate. The presented optical modulator driver is designed for wafer scale packaging which optimizes the interface between PIC and EIC, result in a power efficient and high speed circuit. Moreover, the driver output provides a DC voltage bias for  the optical modulator without using a bias-T. The driver is measured with 3 dB bandwidth of 31.5 GHz and a data rate of 56 Gb/s PAM-4 with 3 Vpp output voltage swin

Broadband sub-THz spectroscopy modules integrated in 65-nm CMOS technology

\u3cp\u3eThe design and characterization of a broadband 20-480 GHz continuously tuneable on-chip spectrometer based on non-linear transmission lines in 65-nm CMOS technology is presented. The design procedure of the sampler that detects the ultra-broadband signal from the transmitter in time and frequency domain is described in detail. It consists of a non-linear transmission line, a passive pulse differentiator and a high-speed sample and hold-circuit. The relevance of the layout of the Schottky diodes in the sampler with a maximum RC-cutoff frequency of 430 GHz is described. Time domain and frequency domain measurements are presented to characterize the 480 GHz sampler bandwidth as well as the 3.1 ps sampler rise time. A signal to noise ratio of 90 dB at 100 GHz, 70 dB at 200 GHz and more than 30 dB at 480 GHz is reached. Two implementation of the spectrometer with antennas are presented, one with an on-chip antenna and one in a hybrid package. The antenna-less on-chip implementation of the transmitter and sampler requires no external lenses and is miniaturized to an area of 3 mm\u3csup\u3e2\u3c/sup\u3e. Future applications include analysis of fluids in microfluidic packages or droplet analysis in bio-medical or pharmaceutical applications.\u3c/p\u3

A 50–60 GHz mm-wave rectifier with bulk voltage bias in 65-nm CMOS

This letter presents a 50∼60 GHz fully integrated 3-stage rectifier with bulk voltage bias for threshold voltage modulation in a 65-nm CMOS technology, which can be integrated in a mm-wave hybrid rectifier structure as the main rectifier. In this letter, the new technique of bulk voltage bias is proposed and implemented. In this method, the threshold voltage of MOSFETs in the main rectifier is modulated by biasing their bulk voltage, which improves the rectifier sensitivity and efficiency. Compared to the inductor peaking method [1] or local threshold voltage modulation technique [2] in CMOS technology, the circuit proposed in this letter achieves better sensitivity and efficiency while maintaining a compact size. The work achieves −10 dBm input sensitivity at 52 GHz with 1 V DC output voltage. The maximum efficiency at 52 GHz is 13%. The overall sensitivity over the 50∼60 GHz band is better than −5 dBm