# US 12,113,296 B2 · Adjustable unequal power combiner and switch

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- Number: US 12,113,296 B2
- Document ID: US12113296B2
- Status: Granted
- Kind: B2
- Application number: 18/107,643
- Filed: 2023-02-09
- Published: 2023-08-03
- Granted: 2024-10-08
- Earliest claimed: 2018-07-02
- Assignees: Tubis Technology INC.
- Applicants: Tubis Technology, Inc.
- Inventors: Siqi Zhu; James Wang
- Web page: https://patentgrep.com/patent/US12113296B2

## CPC

- H01Q 1/2283: {mounted in or on the surface of a semiconductor substrate as a chip-type antenna or integrated with other components into an IC package}
- H01Q 3/34: by electrical means (active lenses or reflecting arrays H01Q3/46)
- H01P 3/08: Microstrips; Strip lines
- H01P 5/04: with variable factor of coupling
- H01P 5/16: Conjugate devices, i.e. devices having at least one port decoupled from one other port
- H01Q 5/42: using two or more imbricated arrays (H01Q5/49 takes precedence)
- H01Q 21/22: Antenna units of the array energised non-uniformly in amplitude or phase, e.g. tapered array or binomial array
- H01Q 21/062: {using dipole aerials; (H01Q21/067, H01Q21/068 take precedence)}
- H01Q 21/065: {Patch antenna array}
- H01Q: ANTENNAS, i.e. RADIO AERIALS (radiators or antennas for microwave heating H05B6/72)
- H01P: WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE (operating at optical frequencies G02B)

## Abstract

A single stage unequal power combiner is proposed. Instead of conventional combiner plus impedance transformer of 2-stage unequal combiner, the single stage combiner gets rid of the input impedance transformer. The single stage combiner supports adjustable transmission line impedance and reasonable mismatch loss, assuming that the power ratio of the input signals is within a certain range. The single stage combiner also has an adjustable isolation resistor for different power ratios. A structure of switchable branch characteristic impedance, switchable isolation resistor for the unequal combiner is proposed as the preferred embodiment. In one advantageous aspect, broader coverage angle in a single array module can be realized via an antenna diversity switch.

## Claims

### Claim 1

An antenna module comprising:
a plurality of phased antenna arrays for receiving input signals, wherein each of the plurality of phased antenna arrays is positioned in proximity with different locations of the antenna module for receiving different input signals from different angles;
one or more unequal combiners, wherein each combiner has two input terminals coupled to the phased array antennas; and
an antenna diversity switch coupled to each of the plurality of phased antenna arrays, wherein the antenna diversity switch controls one of the phased antenna arrays to be active at a time through the one or more unequal combiners, and wherein the antenna diversity switch comprises a shunt switch at each input terminal of a quarter impedance wavelength transformer of each combiner coupled to the phased antenna arrays.

### Claim 2 (depends on 1)

The antenna module of claim 1, wherein the shunt switch is closed at one input terminal of a quarter impedance wavelength transformer of a combiner, and wherein an isolation resistor connecting the two input terminals of the combiner is open.