Implementation of Low-Cost UHF RFID Reader Front-Ends with Carrier Leakage Suppression Circuit
Figure 10
Measurement setup and testing result of the received signal of circulator and CLS circuit, respectively, at a Tx output power of 20 dBm; (a) measurement setup when testing the received signal by using circulator instead of CLS circuit; (b) measurement setup when testing the received signal by using CLS circuit; (c) testing result of (a) and (b).
