Wireless chip maker Broadcom Inc reported higher-than-expected quarterly revenue and profit, helped by strong sales of its WiFi and broadband chips to handset makers such as Apple Inc and Samsung Electronics Co Ltd. Shares of Broadcom, which also forecast current-quarter revenue above analysts' expectations, rose 4 percent in extended trading on Tuesday. The company is benefiting from strong demand for newly-launched smartphones such as Apple's iPhone 6 and Samsung's Galaxy S6.