Design of Logarithmically Spaced Constant-Directivity Transducer Arrays
An approach to array design is described which results in the construction of transducers with a frequency-independent directivity pattern. Frequency independence is achieved by truncating the effective array aperture in a frequency-dependent way. Logarithmic spacing of the transducers ensures maximum frequency coverage with a fixed number of transducers. This array design method can be used for microphone arrays as well as for loudspeaker arrays. Experiments with both a microphone and a loudspeaker array show that the predicted radiation patterns can be matched very closely in practice.
Click to purchase paper or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!
This paper costs $20 for non-members, $5 for AES members and is free for E-Library subscribers.