A dual-band doherty power amplifier with harmonic optimization
A technology for power amplifiers and power dividers, applied in dual-band/triple-band amplifiers, radio frequency amplifiers, amplifiers with semiconductor devices/discharge tubes, etc., can solve problems such as concurrent dual-frequency Doherty circuits, and reduce circuit size , cost reduction, volume reduction effect
Active Publication Date: 2022-07-12
新拓尼克(北京)科技研发中心有限公司
View PDF9 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0007] The patent application number CN107222173A discloses a millimeter-wave dual-frequency Doherty power amplifier based on a single-frequency line, and the patent application number CN106357222A discloses a Doherty power amplifier circuit. The matching network of the prior art is not a dual-frequency network implemented in parallel. Their The limitations are obvious. For example, CN107222173A uses a single-frequency network with complementary frequencies to realize a pseudo-dual-frequency Doherty amplifier with compromised performance. CN106357222A uses a dual-frequency split and then processes them separately, and it is not a real concurrent dual-frequency Doherty circuit.
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0037] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.
[0038] refer to Figure 1-9, a dual-frequency Doherty power amplifier with harmonic optimization function, comprising: dual-frequency power divider network 200, main power amplifier dual-frequency input matching network 201, auxiliary power amplifier dual-frequency input matching network 202, main power amplifier tube, auxiliary power amplifier tube , main power amplifier dual-frequency offset and harmonic optimization network 203, auxiliary power amplifier dual-frequency offset and harmonic optimization network 204, main power amplifier dual-frequency output matching network 205, auxiliary power amplifier dual-frequency output matching net...
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
Login to View More Abstract
The invention discloses a dual-frequency Doherty power amplifier with harmonic optimization function. , Main power amplifier dual-frequency offset and harmonic optimization network, auxiliary power amplifier dual-frequency offset and harmonic optimization network, main power amplifier dual-frequency output matching network, auxiliary power amplifier dual-frequency output matching network, main power amplifier dual-frequency compensation line, auxiliary power amplifier Dual-frequency compensation line, dual-frequency impedance transformation network. The invention expands Doherty with dual frequency, which can not only meet the requirement of high fallback efficiency of mobile communication system, but also deal with the problems of fragmented, discontinuous and long-term coexistence of frequency band distribution caused by the upgrading of communication system. The application of power amplifier technology can effectively reduce the size of the circuit, reduce the volume, and reduce the cost. At the same time, the harmonic optimization circuit is introduced to improve the efficiency and output power of the dual-frequency Doherty.
Description
technical field [0001] The present invention relates to the technical field of mobile communication, in particular to a dual-frequency Doherty power amplifier with harmonic optimization function. Background technique [0002] Since the development of mobile communication systems, modern modulation methods such as OFDM (Orthogonal Frequency Division Multiplexing, Orthogonal Frequency Division Multiplexing) and CDMA (Code Division Multiple Access) have been widely used. The utilization rate of the spectrum, but also has the problem of peak-to-average ratio. At present, the Doherty technology is commonly used, which has both high fallback efficiency and linearity, and can meet the requirements of peak-to-average ratio. figure 1 It is the schematic diagram of the traditional Doherty power amplifier, such as figure 1 The Doherty circuit shown is composed of a main power amplifier and its matching network, an auxiliary power amplifier and its matching network, a combining networ...
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
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H03F1/02H03F1/56H03F3/195H03F3/213
CPCH03F1/0288H03F1/56H03F3/195H03F3/213H03F2200/111H03F2200/451Y02D30/70
Inventor 姜玮刘楠黄亮吴瑾
Owner 新拓尼克(北京)科技研发中心有限公司