US 12,191,555 B2Granted

Power divider and single pole double throw switch device using the same

AssigneeNational Chi Nan University

InventorsYo-Sheng Lin, Bo-Shun Chen, Yu-Cian Peng

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Abstract

A power divider includes first to third transmission lines (TLs) and first to third capacitors. The second TL includes a first transmission portion (TP) and a first output portion (OP). The first TP is connected between the first TL and the first OP. The third TL includes a second TP and a second OP. The second TP is connected between the first TL and the second OP. The first capacitor is connected between ground and a common node of the first TL and the first and second TPs. The second capacitor is connected between ground and a terminal of the first OP distal from the first TP. The third capacitor is connected between ground and a terminal of the second OP distal from the second TP.

Claims6

Dependent claims

A power divider comprising:

a first transmission line having a first terminal and a second terminal;
a second transmission line including a first transmission portion and a first output portion, each of said first transmission portion and said first output portion having a first terminal and a second terminal, said first terminal of said first transmission portion being connected to said second terminal of said first transmission line, said second terminal of said first transmission portion being connected to said first terminal of said first output portion;
a third transmission line including a second transmission portion and a second output portion, each of said second transmission portion and said second output portion having a first terminal and a second terminal, said first terminal of said second transmission portion being connected to said second terminal of said first transmission line, said second terminal of said second transmission portion being connected to said first terminal of said second output portion;
an input capacitor connected between said second terminal of said first transmission line and ground;
and
two output capacitors, one of which is connected between said second terminal of said first output portion and ground, and the other one of which is connected between said second terminal of said second output portion and ground;
wherein said first and second transmission portions are interwound.

4 more elements

A single pole double throw (SPDT) switch device comprising:

a power divider including
a first transmission line having a first terminal and a second terminal,
a second transmission line including a first transmission portion and a first output portion, each of said first transmission portion and said first output portion having a first terminal and a second terminal, said first terminal of said first transmission portion being connected to said second terminal of said first transmission line, said second terminal of said first transmission portion being connected to said first terminal of said first output portion,
a third transmission line including a second transmission portion and a second output portion, each of said second transmission portion and said second output portion having a first terminal and a second terminal, said first terminal of said second transmission portion being connected to said second terminal of said first transmission line, said second terminal of said second transmission portion being connected to said first terminal of said second output portion,
an input capacitor connected between said second terminal of said first transmission line and ground, and
two output capacitors, one of which is connected between said second terminal of said first output portion and ground, and the other one of which is connected between said second terminal of said second output portion and ground;
an inverter having an input terminal that receives a control signal, and an output terminal that provides an inverted signal, the inverted signal being a logical complement of the control signal in logical value;
a first transistor having a first terminal that is connected to said second terminal of said first output portion of said second transmission line, a second terminal that is connected to ground, a control terminal and a body terminal;
a first resistor connected between said body terminal of said first transistor and said input terminal of said inverter;
a second resistor connected between said control terminal of said first transistor and said input terminal of said inverter;
a second transistor having a first terminal that is connected to said second terminal of said second output portion of said third transmission line, a second terminal that is connected to ground, a control terminal and a body terminal;
a third resistor connected between said control terminal of said second transistor and said output terminal of said inverter;
and
a fourth resistor connected between said body terminal of said second transistor and said output terminal of said inverter.

11 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/946,627Filed 16 Sep 2022
Priority: TW 11111855918 May 2022
Published: US 2023/0378628 A123 Nov 2023
Granted: 7 Jan 2025
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

H01P 5/16
Coupling devices having more than two ports: conjugate devices, i.e. devices having at least one port decoupled from one other port
H01P 5/18
Conjugate devices, i.e. devices having at least one port decoupled from one other port: consisting of two coupled guides, e.g. directional couplers
H01P 5/184
Consisting of two coupled guides, e.g. directional couplers: the guides being strip lines or microstrips
H03H 7/42
Multiple-port networks comprising only passive electrical elements as network components: networks for transforming balanced signals into…

Family

US 2023/0378628 A1Pre-grant publication · published 23 Nov 2023
US 12,191,555 B2This patent

From the US filing history. Foreign family members aren’t listed.

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