In the field of radio frequency and microwave, in addition to the transmission of wireless signals, most of the scenarios still need to use transmission lines for signal transmission. Among them, coaxial cables and waveguides are widely used.In order to be used in various occasions, these two transmission lines are sometimes connected to each other, which requires a waveguide to coaxial adapter (o……

China Mobile and China Radio and television officially signed a cooperation agreement on jointly building a 700MHz wireless network recently.China Mobile shall provide China Radio and Television a paid 5G base station with 700MHz frequency. According to the announcement information, the expenses related to the construction, expansion, renovation and alternation of 700MHz wireless network shal……

Dear customers and suppliers: The Taurus year is going away with the winter, and the Tiger year is coming vigorously with the spring. Lunar New Year is within reach! We have gone through 2021 hand in hand. May 2022 create more brilliance! According to the delivery date of the customer’s order and the actual situation of our company, the schedule of the Spring Festival holiday in 2022 is as fo……

Dear customers and suppliers: According to the notice of the general office of the State Council, the New Year’s Day holiday in 2022 is now arranged as follows: From Jan. 1st (Saturday) to 3rd (Monday), 2022 (i.e. Nov. 29th to Dec. 1st. in the lunar calendar) total 3 days off, and will work on Jan. 4th (Tuesday) (i.e.Dec. 2nd in the lunar calendar). Hope all customers well noted. In addi……

Table 1-Standard radar-frequency letter band nomenclatureInternational tableBand designationNominal frequency rangeSpecific frequency ranges for radar based on ITU assignmentsRegion 1Region 2Region 3HF3-30 MHzVHF30-300 MHzNone138-144 MHz216-225 MHz223-230 MHzUHF300-1000 MHz420-450 MHz890-942 MHzL1-2 GHz1215-1400 MHzS2-4 GHz2300-2500 MHz2700-3600 MHz2700-3700 MHzC4-8 GHz4200-4400 MHz5250-5850 MHz52……

The Drop in isolator/circulator is usually installed on the circuit board, the following is the installation instruction： Slotting on the circuit board to locate the drop in part. (The depth of the slot depends on the distance from the pin to the ground.) Solder the pin onto the circuit board (welding temperature <180°). Do not put too much solder paste, and pay attention to the VSWR match of c……