A dual‐band polarization switchable antenna switch module for 5G new‐radio applications

Abstract

SummaryIn this paper, a dual‐band antenna switch module with switching capability targeting the inter‐band carrier aggregation at 5G new‐radio (NR) frequency range 2 (FR2) is presented. Inter‐band carrier aggregation has become increasingly prevalent in millimeter‐wave applications at Ka‐band frequencies as a means to secure sufficient bandwidth for improving the rate of data transmission. Antenna modules with polarization switching capability are considered as a critical component for maintaining proper transmission and reception of the signals at millimeter‐wave frequencies. The integrated system consists of a wideband single‐pole‐double‐throw (SPDT) switch and a dual‐band power amplifier (PA) that are realized on the Rogers RO3010 substrate. With the two double exponentially tapered slot antennas (DETSA) arranged in the mutually orthogonal configuration, the antenna switch module can provide linear polarization at ±45 degrees. A measured error‐vector‐magnitude (EVM) of −30.3 dB at 38 GHz using 200‐MHz standard 5G NR 256‐QAM orthogonal frequency‐division multiplexing (OFDM) modulation has demonstrated the feasibility of the proposed module to be implemented for millimeter‐wave applications.

Low‐cost ultra‐wideband discrete SPDT switch for K–Ku band in automotive applications and fifth‐generation systems

“…In Figure 9, the application SPDT switch in V2X communication is shown. The importance of the SPDT switch circuit is defined in the control between the transmitter and receiver antennas, which is especially defined in the communication structure between the two cars 3–5 …”

“…The advancement of communication systems has resulted in a proliferation of antennas, now recognized as Multiple-Input Multiple-Output (MIMO) systems. [1][2][3][4][5] The primary objective of employing MIMO is to enhance channel capacity, data rate, and various communication system parameters. 6,7 A crucial aspect of MIMO is the capability to switch between different antennas, which is vital for managing the connection between the transmitter, receiver, and antennas.…”

“…The advancement of communication systems has resulted in a proliferation of antennas, now recognized as Multiple‐Input Multiple‐Output (MIMO) systems 1–5 . The primary objective of employing MIMO is to enhance channel capacity, data rate, and various communication system parameters 6,7 .…”