RF/microwave tunable delay line
AssigneeParatek Microwave, Inc.
InventorsLouise C. Sengupta, Douglas Pao, Yongfei Zhu
Life of this patent
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Abstract
A tunable delay line includes an input, an output, a first conductor electrically coupled to the input and the output, a ground conductor, and a voltage tunable dielectric layer positioned between the first conductor and the ground conductor. DC blocks and impedance matching sections are connected between the first conductor and the input and output. Additional layers of tunable dielectric material and additional conductors can be positioned in parallel with the voltage tunable layer.
Claims32
A tunable delay line comprising;
- an input;
- an output;
- a first conductor electrically coupled to the input and the output;
- a ground conductor;
- and
- a voltage tunable dielectric layer positioned between the first conductor and the ground conductor;
- wherein the voltage tunable dielectric material has a loss tangent in the range of 0.001 to 0.01 at frequencies in a range of 800 MHz to 40 GHz.
A tunable delay line comprising:
- an input;
- an output;
- a first conductor electrically coupled to the input and the output;
- a ground conductor;
- and
- a voltage tunable dielectric layer positioned between the first conductor and the ground conductor, the voltage tunable dielectric comprising a material having a loss tangent in the range of 0.001 to 0.01 at frequencies in a range of 800 MHz to 40 GHz;
- wherein the first conductor comprises a metalized layer microstrip line.
A tunable delay line comprising:
- an input;
- an output;
- a first conductor electrically coupled to the input and the output;
- a ground conductor;
- a voltage tunable dielectric layer positioned between the first conductor and the ground conductor, the voltage tunable dielectric comprising a material having a loss tangent in the range of 0.001 to 0.01 at frequencies in a range of 800 MHz to 40 GHz;
- and
- a housing containing the first conductor, the ground conductor, and the voltage tunable dielectric layer.
A tunable delay line comprising:
- an input;
- an output;
- a first conductor electrically coupled to the input and the output;
- a ground conductor;
- a voltage tunable dielectric layer positioned between the first conductor and the ground conductor;
- a plurality of additional layers of tunable dielectric material;
- and
- a plurality of additional electrodes for applying control voltage to the plurality of additional layers of tunable dielectric material.
A tunable delay line comprising:
- an input;
- an output;
- a first conductor electrically coupled to the input and the output;
- a ground conductor;
- and
- a voltage tunable dielectric layer positioned between the first conductor and the ground conductor;
- wherein the ground conductor comprises first and second electrodes lying parallel to the first conductor.
A tunable delay line comprising:
- an input;
- an output;
- a first conductor electrically coupled to the input and the output;
- a ground conductor;
- and
- a voltage tunable dielectric layer positioned between the first conductor and the ground conductor;
- wherein the tunable dielectric layer comprises a material selected from the group of:
- barium calcium titanate, lead zirconium titanate, lead lanthanum zirconium titanate, lead titanate, barium calcium zirconium titanate, sodium nitrate, KNbO3, LiNbO3, LiTaO3, PbNb2O6, PbTa2O6, KSr(NbO3), NaBa2(NbO3)5, KH2PO4, and composites thereof, and having a loss tangent in the range of 0.001 to 0.01 at frequencies in a range of 800 MHz to 40 GHz.
A tunable delay line comprising:
- an input;
- an output;
- a first conductor electrically coupled to the input and the output;
- a ground conductor;
- and
- a voltage tunable dielectric layer positioned between the first conductor and the ground conductor;
- wherein the tunable dielectric layer comprises a material selected from the group of:
- Mg2SiO4, CaSiO3, BaSiO3, SrSiO3, Na2SiO3, NaSiO3-5H2O, LiAlSiO4, Li2SiO3, Li4SiO4, Al2Si2O7, ZrSiO4, KAlSi3O8, NaAlSi3O8, CaAl2Si2O8, CaMgSi2O6, BaTiSi3O9 and Zn2SiO4, and having a loss tangent in the range of 0.001 to 0.01 at frequencies in a range of 800 MHz to 40 GHz.
Dependencies are inferred from the claim text.