Antenna system with multiple transmit paths

Techniques for antenna system with multiple transmit paths are described and may be implemented via a wireless device to adapt to a variety of different wireless scenarios. Generally, the described techniques provide a wireless device with the ability to connect to different access points of a wireless network, such as 4G LTE and 5G NR portions of an UTRAN New Radio-Dual Connectivity (EN-DC)-compliant network. In at least some implementations, the described techniques utilize four-antenna systems configured to utilize low frequency bands, such as LTE low-band and 5G NR low-band frequencies. Further, the described systems enable multiple wireless protocols (e.g., LTE and 5G NR) to be used concurrently and cooperatively, such as to provide 5G NR connectivity utilizing an LTE network infrastructure.