Custom Ceramic/Dielectric Duplexer
Contact Info
- Address:深圳市寶安區(qū)西鄉(xiāng)街道鐵崗社區(qū)寶田一路360號(hào)（G1）嘉皇源科技園, Zip: 518000
- Contact: 徐先生
- Tel:0755-23204948
- Email:450067110@qq.com
Other Products
I. Product Features and Description
The function of a ceramic duplexer (dielectric duplexer) is to distinguish the frequency range of input or output signals through filtering, ensuring that two different signal sources do not interfere with each other. The main role of a ceramic duplexer is to allow two different signal sources to share the same transmission medium, enabling communication tasks to be completed within a limited space. In radar or satellite communications, the duplexer enables simultaneous transmission and reception of signals, improving communication efficiency. It is commonly used to differentiate between the frequencies of transmitted and received signals and has bandwidth control capabilities.
The ceramic duplexer (dielectric duplexer) can withstand an average power of up to 20W, with 50Ω impedance matching for input/output (75Ω requires special specification), and is easy to cascade. It offers stable and reliable performance across the full temperature range, meeting industrial-grade environmental requirements (-55℃ to +85℃). Ceramic duplexers feature high suppression, high power handling, low insertion loss, excellent thermal stability, low temperature coefficient, surface-mount design, compact size, lightweight, and ease of soldering.
II. Product Models and Parameters
| Ceramic Duplexer (Dielectric Duplexer) Models and Parameters Table | ||||||||
Model | Center Frequency (MHz) | Bandwidth (MHz) | Insertion Loss (dB Max.) | Ripple (dB Max) | Return Loss (dB Min) | Rejection (dB Min) | Dimensions (mm) | |
CMD810C409~462P05A | TX | 409 | fo±2.5 | 1.5 | 0.5 | 14 | 45 @ 460-465 MHz | 42.5 * 2.0* 9.5 |
RX | 462 | fo±2.5 | 1.5 | 0.5 | 14 | 45 @ 407 - 412 MHz | ||
CMD810C462~409P05A | TX | 462 | fo±2.5 | 1.5 | 0.5 | 14 | 45 @ 407 - 412 MHz | 42.5 * 2.0* 9.5 |
RX | 409 | fo±2.5 | 1.5 | 0.5 | 14 | 45 @ 460 - 465 MHz | ||
CMD810C505~485P10B | TX | 505 | fo±5 | 3.0 | 1.8 | 14 | 57 @ 480 - 490 MHz | 42.5 * 2.0* 9.5 |
RX | 485 | fo±5 | 3.0 | 1.8 | 14 | 57 @ 500 - 510 MHz | ||
CMD10R0033A | TX | 725.5 | fo±22.5 | 3.0 | 2.0 | 13 | 40 @ 758 - 803 MHz | 42.0 * 17.0* 9.5 |
RX | 780.5 | fo±22.5 | 3.0 | 2.0 | 13 | 40 @ 703 - 748 MHz | ||
CMD10R0079A | TX | 874.5 | fo±5.5 | 5 | 2.0 | 17 | 55 @ 824 - 835 MHz | 40.5 * 23.0* 7.0 |
RX | 829.5 | fo±5.5 | 2.2 | 2.0 | 17 | 50 @ 869 - 880 MHz | ||
CMD10R0005A | TX | 1817.5 | fo±12.5 | 3.2 | 1.0 | 17 | 45 @ 1710 - 1735 MHz | 34.0 * 19.0* 7.3 |
RX | 1722.5 | fo±12.5 | 3.0 | 1.0 | 17 | 45 @ 1805 - 1830 MHz | ||
| CMD10R0007A | TX | 2140 | fo±30.0 | 2.8 | 1.0 | 17 | 45 @ 1920 - 1980 MHz | 34.0 * 19.0* 7.3 |
RX | 1950 | fo±30.0 | 3.0 | 1.0 | 17 | 50 @ 2110 - 2170 MHz | ||
| CMD10R0008A | TX | 1885 | fo±25.0 | 3.0 | 1.0 | 17 | 55 @ 1710 - 1785 MHz | 33.0 * 18.0* 7.3 |
RX | 1760 | fo±25.0 | 3.0 | 1.0 | 17 | 45 @ 1830 - 1880 MHz | ||
| CMD7R0027A | TX | 881.5 | fo±12.5 | 1.4 | 0.8 | 17 | 30 @ 824 - 849 MHz | 25.0 * 12.8* 7.0 |
RX | <極="1" rowspan="1">fo±12.5 | 1.2 | 0.4 | 17 | 20 @ 894 - 960 MHz | |||
| CMD8R0012A | TX | 1842.5 | fo±37.5 | 1.4 | 1.1 | 16 | 30 @ 1710 - 1784 MHz | 25.0 * 10.8* 7.0 |
RX | 1747.5 | fo±37.5 | 1.5 | 1.1 | 16 | 25 @ 1880 - 2690 MHz | ||
| CMD8R0029A | TX | 1962.5 | fo±32.5 | 2.0 | 2.0 | 17 | 30 @ 1850 - 1910 MHz | 25.0 * 10.8* 7.0 |
RX | 1882.5 | fo±32.5 | 1.5 | 1.0 | 17 | 15 @ 1930 - 1995 MHz | ||
| CMD8R0028A | TX | 2155 | fo±45.0 | 1.0 | 0.4 | 17 | 45 @ 1710 - 1780 MHz | 25.0 * 10.8* 7.0 |
RX | 1745 | fo±35.0 | 0.8 | 0.3 | 17 | 35 @ 2110 - 2200 MHz | ||
| Note: Due to the large number of product models, only representative models are listed in the table. Detailed communication is required before ordering to understand other specifications. | ||||||||
III. Precautions and Applications
Ceramic duplexers (dielectric duplexers) are widely used in T/R modules, base stations, RF and microwave systems, radar, Wi-Fi, repeaters, mobile communications, and electronic products with bandwidth control and duplex communication capabilities. The products should be stored in a warehouse with an ambient temperature of -10℃ to 40℃, relative humidity not exceeding 80%, and free from acidic, alkaline, or other harmful gases. During use, ensure that the grounding terminal is properly connected; otherwise, out-of-band rejection and flatness performance may be affected. If reflow soldering is used, it is recommended to follow the recommended temperature profile. Wave soldering is not advisable, and immersion cleaning is prohibited.
Ceramic duplexers are flexibly designed and can be customized according to customer requirements. Our company offers a variety of sizes of ceramic duplexers (dielectric duplexers) for users to choose from, with customization available for frequencies ranging from 300MHz to 10GHz. Since the specifications of microwave components are interrelated and affect each other, users must clearly define their requirements before customization. These products are highly customized, and once manufactured, they cannot be altered.
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