Nonreciprocal power divider and electromagnetic wave transmission device

Abstract

The invention provides a nonreciprocal power divider and an electromagnetic wave transmission device. The nonreciprocal power divider comprises a dielectric substrate and at least one Wilkinson powerdivider, wherein a port of the Wilkinson power divider is used as a radio frequency port of the nonreciprocal power divider; the Wilkinson power divider is arranged on the top surface of the dielectric substrate, each branch of the Wilkinson power divider comprises a filter, and each filter is composed of at least two resonators; the back surface of the dielectric substrate is provided with a plurality of variable capacitance diodes, a plurality of signal feed-in circuits, a plurality of metallized through holes and a plurality of modulation ports; the modulation ports are used for receiving modulation signals, each modulation port is connected to one metallized through hole through the signal feed-in circuit, one end of each variable capacitance diode is connected to one end of a resonator through the metallized through hole, and the other end of each variable capacitance diode is grounded. The non-reciprocal power divider is realized without bias of any magnetic material, and has theadvantages of integration with a circuit and the like.

Description

technical field [0001] The invention relates to semiconductor technology, specifically a non-reciprocal power divider and an electromagnetic wave transmission device. Background technique [0002] In mobile communication systems, RF non-reciprocal devices are essential system components. Non-reciprocity means that electromagnetic waves traveling in two opposite directions in a medium will exhibit different electromagnetic wave transmission characteristics. [0003] Common RF non-reciprocal devices include isolators and circulators. Isolators protect signal sources from high-power reflected signals, and circulators direct electromagnetic waves. Non-reciprocal devices in the prior art usually use magnetic materials and external magnetic field bias to break the time-reversal symmetry so as to realize the non-reciprocity of electromagnetic wave transmission. These non-reciprocal devices often exist due to the use of magnetic materials Disadvantages such as high loss, large vo...

AI Technical Summary

Problems solved by technology

Almost all non-reciprocal radio frequency devices in the prior art need to use magnetic materials such as ferrite to break the time-reversal symmetry, and the magnetic material lattice is different from that of CMOS (complementary metal-oxide-semiconductor) integrated circuit processing technology. Compatible, making it difficult for these RF devices to be integrated with system circuits, which is not conducive to the miniaturization of equipment

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