Unlock instant, AI-driven research and patent intelligence for your innovation.

Novel low temperature co-fired ceramic (LTCC) duplexer

A duplexer, a new type of technology, used in waveguide-type devices, electrical components, circuits, etc., can solve problems such as restricting the use effect, achieve low insertion loss, improve performance, and reduce components.

Active Publication Date: 2015-07-01
SHENZHEN MICROGATE TECH
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Please see attached figure 1 , with figure 1 It is a schematic block diagram of a traditional duplexer. The traditional duplexer consists of a low-pass filter and a high-pass filter, and outputs the signal received from the antenna end (port 1) to port 2 and port 3 according to the frequency. No. port output, due to the limitation of its working frequency band, its use effect is limited

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Novel low temperature co-fired ceramic (LTCC) duplexer
  • Novel low temperature co-fired ceramic (LTCC) duplexer
  • Novel low temperature co-fired ceramic (LTCC) duplexer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] This embodiment is a preferred implementation mode of the present invention, and other principles and basic structures that are the same or similar to this embodiment are within the protection scope of the present invention.

[0032] Please see attached figure 2 , the duplexer in the present invention is composed of a low-pass filter and a band-pass filter working in the high frequency band. Please refer to the attached image 3 , the present invention is internally composed of a low-pass filter 4 and a band-pass filter 5, both filters are connected to the common port 1 (i.e., the antenna end), so that the low-frequency components of the mixed signal received from the antenna end After being filtered by the 2.4GHz low-pass filter 4, the low-frequency signal terminal 2 is output, and the high-frequency component of the mixed signal received by the antenna is filtered by the 5GHz band-pass filter 5, and then output by the high-frequency signal terminal 3. In this embodim...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a novel low temperature co-fired ceramic (LTCC) duplexer. The duplexer is of a special structure and consists of a low pass filter and a bandpass filter working at a high frequency section. By the duplexer implemented by an LTCC technology, out-of-band zero points are introduced, so that in-band low insertion loss and out-of-band high limitation are realized, and signals in two bands are not mutually influenced; and moreover, due to introduction of a transmission zero point, the performance is improved, and the design is simplified.

Description

technical field [0001] The invention discloses a novel low temperature co-fired ceramic (LTCC) duplexer, which can be applied to mobile phones, tablet computers, notebooks, digital cameras and other communication devices supporting WLAN transmission. Background technique [0002] With the rapid development of wireless data transmission technology, when wireless data transmission is performed between mobile phones, laptop computers, digital cameras, printers and other equipment terminals, the requirements for transmission speed and reliability are getting higher and higher. WLAN wireless transmission is currently the main short-distance high-speed transmission technology. In September 1999, IEEE 802.11b was officially approved. This standard stipulates that the WLAN operating frequency band is 2.4-2.4835 GHz, the data transmission rate reaches 11 Mbps, and the transmission distance is controlled within 15-45 meters. In the same year, the IEEE 802.11a standard was formula...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H01P1/20
Inventor 梁启新赖定权付迎华朱圆圆张立智
Owner SHENZHEN MICROGATE TECH