摘要
针对一些无线短距离通信技术应用的局限性,以及其产品成本较高,维修困难等情况,设计了一种新的无线呼叫器,用于短距离的信息传递。该无线短距离呼叫器主要由发射机和接收机两大部分构成。经测定,该呼叫器具有维护方便、规模小、效率高、抗干扰能力强、发射功率利用系数大且成本低等特点。
Faced to the case that some of the short-distance wireless technology applications are limited and the case that the products are expensive and are difficult to be repaired, a new short-distance radio-call is designed to transfer information. It is made of sending set and receiver. After the test, the product has the following characters： easily repairing, small size, high efficiency, strong anti-interference capability and high utilization factor of radiation power and low cast.
出处
《江南大学学报（自然科学版）》
CAS
2009年第2期174-176,共3页
Joural of Jiangnan University (Natural Science Edition)
关键词
混频
倍频
谐振
二次谐波
同步检波
mixer, frequency-multiplier, resonance, secondary harmonic, synchronous detection
