A wideband and a Wide-Beamwidth acoustic transducer design for underwater acoustic communications
OCEANS 2006 - Asia Pacific
1 - 5
Item Usage Stats
This paper is concerned with the design of an efficient, wideband and a wide-beamwidth resonant acoustic transducer for high frequency use. The general transducer structure which has two back-to-back quarter wave thick 1-3 composite ceramic elements at resonance frequency is introduced. The transducer is employed for both transmit and receive modes. Design of transmitting and receiving transducers are discussed. Several transfer functions are derived and their effective bandwidths are calculated. It is shown that the phase angle difference between two acoustic ports in receive mode can be processed at the electrical ports to maintain better throughput. The paper includes future works to be done. It is concluded that the proposed structure can be used for applications of spread spectrum schemes in underwater communications. ©2006 IEEE.
Ports and harbors
Spread spectrum schemes
Underwater acoustic communications
Published Version (Please cite this version)http://dx.doi.org/10.1109/OCEANSAP.2006.4393856
Showing items related by title, author, creator and subject.
Ladabaum, I.; Jin, X.; Soh, H. T.; Pierre, F.; Atalar, Abdullah; Khuri-Yakub, B. T. (IEEE, 1996-11)The successful fabrication of ultrasonic immersion transducers is reported. Transducers are observed to operate from 1 MHz to 20 MHz in water, with the frequency range limited by electronics, not the transducers. Transmission ...
Radiation impedance of an array of circular capacitive micromachined ultrasonic transducers in collapsed state Özgürlük, Alper; Atalar, Abdullah; Köymen, Hayrettin; Olcum, Selim (IEEE, 2011-10)Radiation impedance is one of the important parameters in designing efficient and wideband capacitive micro-machined ultrasonic transducer (CMUT) arrays. It determines how much acoustical power is generated in the surrounding ...
Atalar, Abdullah; Köymen, Hayrettin (IEEE, 1987-01)Ultrasonic axicons generate waves which focus on a line. They are used in various imaging applications as hulk wave focusing devices with a very long depth of focus. A new type of conical axicon is introduced. It consists ...