1,720,969 research outputs found
Roadmapping for Corporate Strategy: Action Research in Convergence of Technologies
Full text linkThis PhD thesis deals with the strategic implications of the penetration of consumer wireless technologies in vehicles, which represents a trend of growing importance. The convergence of such markets, namely the consumer industry and the automotive connectivity and infotainment areas, generates opportunities and threats, and research possibilities. An Action Research project was carried out at a leading Tier 1 automotive firm, aiming to implement a customized Technology Roadmapping (TRM) process, able to recognize and deal with a fast changing context, and to manage implications within the organization, at various levels and very dynamically. A new “on demand” overarching TRM framework was obtained and added to the existing practices, enabling better support to strategic decision making and multi-project planning
Strategic Implications of an Innovative Architectural Change: Evidence from Automotive Antenna Systems
No full textThis paper aims to analyze the automotive sector from the perspective of the required antennas, in the context of current wireless applications and latest technical solutions. In particular, considering an architectural innovation addressing the need for highly integrated services, being proposed by a new cooperation of suppliers and automotive companies, the competitive implications and possible strategic approach and reaction for a leading antenna manufacturer are discussed
Performance Evaluation of C2C Antennas on Car Body
No full textThis paper presents measurements of two low-cost C2C (Car-to-Car) antennas integrated within a car roof-top module. A GPS patch and a LTE element are also included in the antenna. The integration of these functionalities in a limited space made the design of the antennas particularly challenging. The achieved structure is low profile and can be easily installed in any car roof maintaining its aesthetics. The measurements, performed with the use of the Calearo NF site provided by Satimo, have been carried out by mounting the structure on a car roof. The main results are here presented
G/T estimation for DVB-SH automotive 2-port switchable CP antennas
No full textIn this contribute a multi-port approach for the estimation of the G/T parameter for DVB-SH RX antenna prototypes is presented. G/T evaluation is done from the measurements of the active gain pattern and amplification chain parameters. The proposed methodology has been compared with the Y-method. A link between the two has been presented and a discussion about advantages and disadvantages is given
S-Band Transmit/Receive Antenna Systems for Automotive Satellite Applications
No full textIt happened over a hundred years ago that Henry Ford introduced his famous Model T passenger car. At that time,
variants and extra features were presumably rather irrelevant compared with the automobile itself, which represented
the suitable response to the need of millions of new customers [1]. Since then, a vast range of changes, func- Q3
tions, improvements, and so on were designed and eventually taken into mass production. Among those, in
particular since the 1920s, car radios were introduced for commercial (broadcast) and professional (communications)
purposes [2]. Wireless communications nowadays represent an important area for the car industry, for infotainment
(information and entertainment), comfort, environmental and safety-related services.
In the field of connectivity, and specifically in the context of antennas for wireless functions, it may be of
particular relevance to consider the proposition of a new European satellite technology based on S band, namely,
the Digital Video Broadcasting-Satellite Handheld standard [3] for the forward link and the European Telecommu- Q4
nications Standards Institute S-band Mobile Interactive Multimedia standard [4, 5] for the return link, both in
S-Band.
The mentioned standards are able to provide new satellite services for mobile terminals, such as broadcasting of
radio, TV, and data contents, by using Digital Video Broadcasting-Satellite Handheld and interactive services on
the return link.
This paper describes the activities related to the mentioned S-band system carried out by Calearo in the frame of
the COSTARS (low COst S-band receive/Transmit Antenna for vehiculaR applicationS) project, co-funded by
ESA-ESTEC [6]. In particular, the authors first briefly analyze the state of the art of the services present in the
car industry from the perspective of automotive antennas, analyzing the current wireless applications and considering
the amount of highly integrated functionalities already present, or being proposed. Then, the design and performances
of a switchable dual polarized automotive transmission/reception antenna (COSTARS project) and
usable for S-band automotive applications are introduced. The paper also includes a description of the antenna industrialization
and production line and the related measurements performed during the project
Design and Measurement of Automotive Antennas for C2C Applications
No full textAmong the emerging wireless technologies, C2C communication has received considerable attention in the world because this technology promises to improve road safety and travel comfort. In this paper we present two C2C antennas that can be easily integrated into a conventional rooftop antenna module that includes also an element for GSM and UMTS services. The C2C antennas are a printed monopole and short circuited patch working at the TM01 mode. Antenna characteristics are investigated by S parameters and pattern measurements
COSTARS: low COst S-band receive/Transmit Antenna for vehiculaR applicationS
No full textThe present paper describes the design, manufacturing and testing of a switchable dual polarised Tx/Rx antenna for S-band vehicular applications. The paper also addresses antenna production and the related validation tests. The main contributions and novelty of the antennas designed in the framework of the project are the full integration with ESA requirements and needs, requirements and constraints of automotive market (thanks also to the multi-decennial experience of Calearo Group) for satellite mobile services. Moreover the products are ready for the market and the solutions are highly integrated (including low noise block and filtering section) in a low-cost and shark-fin-like aesthetical concept where the industrialization process has been actively considered and developed
- …
