Acoustic-RF anechoic chamber construction and evaluation

Construction of an Inexpensive Anechoic Chamber and Its Applications in Undergraduate Research [Education Corner]

“…To validate the efficiency of the absorbers and shielding layer over a broad bandwidth, we measured the insertion loss and return loss [11] between two antennas over the 8-12-GHz and 18-40-GHz bandwidths. Although the performance was not measured over the 12-18-GHz range because of a lack of available antennas, the measurements over the two bands indicate that an equally good performance would be achieved.…”

“…The range resolution depends on the velocity v of the wave inside the medium and the bandwidth B of the SFCW, as described in (11) and (12). We denote the theoretical resolution in the z direction as , Rz T and we take it that…”

Performance Analysis of Wireless Intrusion Detection Systems

“…To our knowledge, until now there is no VM software supports virtual creation of wireless environments. Then, the remaining solution is the former one that is manifested in managing the test and measurements through RF isolated enclosure or chamber such as "RF anechoic chamber" [WSPH08] that isolates and protects the testbed and measurements from the exterior uncontrolled RF traffic. For our experimental evaluation of WIDSs, since we have not in our laboratory RF shielded workspace such as RF anechoic chamber, we have constructed RF isolated testbed by building RF shielded enclosure to keep the access point and Wi-Fi adapters (i.e.…”

Standoff Acoustic Modulation of Radio Frequency Signals in a Log-Periodic Dipole Array Antenna

“…1 with an antenna, a studio monitor as the acoustic source, and a laser doppler vibrometer (LDV), all in an acoustic-RF anechoic chamber [16]. The 1536-1225/$31.00 © 2012 IEEE side view of the antenna is shown in Fig.…”