Wideband and high isolation RF carrier-aggregated switch module for LTE-Advanced base station

LTE-Advanced (LTE-A) base station with carrier aggregation (CA) function can meet the larger capacity demand and improve the spectrum efficiency. To fulfill such function, the wide operational bandwidth and high isolation carrier-aggregated switch module is proposed to combine two RF signals, namely, component carriers (CCs) in this work. There are many CA scenarios defined in 3GPP TS 36.104, examples of two 20 MHz LTE-A Release-10 CCs at Band 40 and Band 1+Band 5 are used to verify the feasibility of the proposed module in both the intra-band and inter-band CA.