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Dielectric resonator, voltage-controlled oscillator, and wireless apparatus

A resonator and medium technology, applied in power oscillators, resonators, circuits, etc., can solve problems such as increased signal transmission loss, suppress circuit design constraints, achieve ease of manufacture, and ease of manufacture. Effect

Active Publication Date: 2008-05-14
MURATA MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] In addition, in the prior art described in Non-Patent Document 1, a comb with a DC chopping structure is used to The length of the tooth-shaped part is set to 1 / 4 wavelength of the high-frequency signal, and the transmission loss of the signal can be the minimum, but when the electrode gap is set to other lengths, the transmission loss of the signal increases sharply, so it is necessary to Precise shape adjustment of the shape of the power supply line

Method used

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  • Dielectric resonator, voltage-controlled oscillator, and wireless apparatus
  • Dielectric resonator, voltage-controlled oscillator, and wireless apparatus
  • Dielectric resonator, voltage-controlled oscillator, and wireless apparatus

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Embodiment Construction

[0041] A dielectric resonator according to the first embodiment will be described below with reference to FIG. 2 .

[0042]FIG. 2(A) is a top view of the dielectric resonator 1 of this embodiment, and FIG. 2(B) is a bottom view of the dielectric resonator 1 . In addition, FIG. 2(C) is a schematic diagram in which the wiring pattern 6 is enlarged in the lower view of the dielectric resonator 1. As shown in FIG.

[0043] This dielectric resonator 1 is a resonator that mainly resonates in the TM101 mode, and consists of a plate-shaped dielectric member 2, a substantially circular circular electrode 3 provided thereon as shown in FIG. The rear surface electrode 4 shown in (B) is formed on the mounting surface which is the rear surface. In this dielectric resonator 1 , the lower surface electrode 4 is connected to the ground electrode of the mounting board, and the bump provided on the signal line of the mounting board is connected to the wiring pattern 6 .

[0044] The plate-sha...

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Abstract

In the dielectric resonator (41), the circuit pattern (46) includes an electrode gap (49) for dividing a plurality of electrode parts, a signal input and output part (50) provided on the electrode part on the open side, and a The grounding part (51) on the electrode part of the short circuit side, in the main direction of the line pattern (46), the length L of the signal input and output part (50) and the grounding part (51) facing each other is less than the resonance signal of the self-resonator 1 / 4 wavelength. The signal input and output part (50) is connected with the variable capacitance element, one end of the variable capacitance element is at positive potential, and the other end is at negative potential.

Description

technical field [0001] The present invention relates to a dielectric resonator used in, for example, a microwave band, a millimeter wave band, etc., and a voltage controlled oscillator and a wireless device including such a dielectric resonator. Background technique [0002] Existing oscillators are shown in Figure 1(A). In the oscillator, the dielectric resonator 104 is formed on the surface of the dielectric substrate, the main line 103 connecting the signal line and the resonator is provided on the mounting substrate on which the dielectric resonator 104 itself is mounted, and the main line 103 is provided with a Chopping (cut) electrode gap (hereinafter this structure is referred to as DC chopping structure) 106, the main line 103 is assumed to be two constituent parts 103A, 103B, the negative resistance element 101 is connected to the main line constituent part 103A, The terminating resistor 102 is connected to the main line configuration part 103B to constitute a band...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P7/08H01P7/06H03B5/18H01P7/10
CPCH01P7/06H01P7/082H01P7/10H03B5/1876
Inventor 冈野健马场贵博
Owner MURATA MFG CO LTD