一、Characteristics
LTCC power divider (low temperature co-fired ceramic power divider) is a device that divides the energy of an input signal into two or more equal or unequal outputs. The output port of the same power divider should ensure a certain degree of isolation before the output mode is usually divided into one point two (one input two outputs), one point three (one input three outputs) and so on. The main technical parameters are the voltage standing wave ratio of each port, power loss (including insertion loss, reflection loss and distribution loss), phase balance, isolation between power distribution ports, amplitude balance, power capacity and frequency band width.
LTCC power splitter (low temperature co-fired ceramic power splitter) has the characteristics of high frequency, high transmission speed, wide passband, high isolation, low insertion loss, high return loss, miniaturization, easy welding, high elasticity integrated design, can adapt to high current, can withstand continuous electromagnetic wave impact within four watts of power intensity. Using LTCC technology to further miniaturize and densify circuits can improve the quality factor of circuits and increase the flexibility of circuit design. In terms of production and system integration, LTCC power divider has high temperature resistance and long life. High integration, light weight, small size, good compatibility; The product has the advantages of high pass rate, good consistency, short production cycle and low cost.
LTCC power splitter
二、Electrical Characteristics
| LTCC Power divider (LTCC power divider) model and parameter table |
| Part No | Frequency（MHz） | Insertion loss（dB） | Isolation（dB） | Size（mm） | SPEC |
| LP21P2150H94 - P02 | 950 - 2150 | ≤ 1.5 | ≥ 15 | 2.0 * 1.25 * 0.95 |  |
| LP21P2140H57 - P01 | 2110 - 2170 | 3.4±0.4 | ≥ 22 | 2.0 * 1.25 * 0.95 | |
| Note: Due to many product models, only some representative models are listed in the table |
三、Application & attention
LTCC power divider (low temperature co-fired ceramic power divider) is very suitable for mobile phone mobile communication, Bluetooth products, WIFI products, automotive electronics, high frequency communication products, balanced amplifier, T/R components and other RF circuits. In use, but pay attention to the grounding end is well grounded, otherwise it will affect the out-of-band suppression and flatness indicators, welding temperature should not be too high, the time should not be too long, recommended temperature. Do not use wave soldering. Products should be stored in the ambient temperature of -10℃~40℃, relative humidity is not more than 80%, the surrounding environment is not acidic, alkaline and other harmful gases in the warehouse. It is recommended to wipe with alcohol when cleaning.
The company can customize LTCC power divider, LTCC bandpass filter, LTCC low-pass filter, LTCC high-pass filter and other devices. Users who accept customized LTCC power divider filters need to put forward reasonable requirements, and the parameters beyond the physical limit of the material can be negotiated to achieve the best indicators.
