Cavity filter assembly
AssigneeKmw Inc.
InventorsJoung-hoe Kim, Sung Bae Park
Life of this patent
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Abstract
The present disclosure provides a cavity filter assembly installed with an RF filter having an empty area formed between the RF filter and a cavity filter body serving as a ground to reduce the parasitic capacitance by forming the cavity filter body with a first pocket portion configured to install the RF filter and a second pocket portion within the first pocket portion in a position to overlap a transmission line, thereby reducing the insertion loss of the RF filter, which when serving as a low-pass filter, can position the harmonics in the stopband further away from the cutoff frequency and thus effect improved frequency characteristics of the low-pass filter through improvements of, for example, the frequency characteristics in the stopband.
Claims15
A cavity filter assembly, comprising:
- a cavity filter, comprising:
- a hollow container including a first pocket portion formed on one surface of the cavity filter and a second pocket portion formed in a predetermined region of a bottom surface of the first pocket portion;
- and
- at least one or more resonant rods positioned within the hollow container;
- a radio frequency (RF) filter disposed within the first pocket portion;
- and
- at least one or more RF connection members coupled to the RF filter on other regions of the bottom surface of the first pocket portion.
Dependencies are inferred from the claim text.