电科芯片：射频开关、低噪声放大器等产品业务营业收入占公司营业收入比例不到1%

Group 1 - The core point of the article is that the company, 电科芯片, has experienced significant stock price fluctuations, with a cumulative increase of over 20% in closing prices over three consecutive trading days [1] - The company has noted that the "commercial aerospace" sector has attracted market attention, which may be influencing the stock price movements [1] - In terms of revenue structure, the company offers products such as RF switches and low-noise amplifiers for satellite communication payloads, but this segment contributes less than 1% to the overall revenue, indicating a minimal impact on profitability [1]