Abstract: A filter circuit component includes desired frequency characteristics without being influenced by a parasitic inductance and a parasitic capacitance, and since the ground terminal of the filter circuit component connected to the mounting electrode of the high-frequency component is connected to the ground electrode of the high-frequency component through the via conductors of the high-frequency component at the shortest distance, the packing density of the filter circuit component is significantly increased and the occurrence of an unnecessary parasitic inductance and an unnecessary parasitic capacitance is prevented. The filter circuit component is mounted on the high-frequency component to obtain the desired frequency characteristics without the influence of a parasitic inductance and a parasitic capacitance.

Abstract: In a method for mounting a filter circuit component to obtain desired frequency characteristics of the filter circuit component without receiving the influence of a parasitic inductance and a parasitic capacitance, and to increase the packing density of components, since the ground terminal of the filter circuit component connected to the mounting electrode is connected to the ground electrode through the via conductors at the shortest distance, the occurrence of an unnecessary parasitic inductance and an unnecessary parasitic capacitance is prevented. The filter circuit component is mounted on the high-frequency component to obtain the desired frequency characteristics of the filter circuit component without the influence of a parasitic inductance and a parasitic capacitance. Since the component is located in a space surrounded by the inner peripheral surface of the supporting frame body, the packing density of components is increased.

Abstract: In a circuit module, a chip element is mounted on a mount electrode, with an outer electrode interposed therebetween. The chip element is arranged such that a cut surface thereof is oriented toward a side of a circuit module that is adjacent to the mount electrode. A gap that is observable from outside of the circuit module is provided between a bottom surface of a base of the chip element and a top surface of a circuit board.

Abstract: In a circuit module, a chip element is mounted on a mount electrode, with an outer electrode interposed therebetween. The chip element is arranged such that a cut surface thereof is oriented toward a side of a circuit module that is adjacent to the mount electrode. A gap that is observable from outside of the circuit module is provided between a bottom surface of a base of the chip element and a top surface of a circuit board.

Abstract: In a circuit module, a chip element is mounted on a mount electrode, with an outer electrode interposed therebetween. The chip element is arranged such that a cut surface thereof is oriented toward a side of a circuit module that is adjacent to the mount electrode. A gap that is observable from outside of the circuit module is provided between a bottom surface of a base of the chip element and a top surface of a circuit board.

Abstract: A voltage-controlled oscillator includes a multilayer substrate having two grounding electrodes. A bare chip IC, a grounding capacitance connected to the collector of a transistor in an oscillator stage disposed in the IC, an electronic component, and other elements, are mounted on one surface of the multilayer substrate, and the electronic components are connected by an electrode pattern. A microstrip line electrode is disposed between the grounding electrodes inside the multilayer substrate, and the collector of the transistor and the capacitor disposed in the IC are connected by through-holes. A sealing resin is filled between the IC and the multilayer substrate to maintain the mounting strength of the IC. A space is provided between the IC and the capacitor to prevent adhesion of the sealing resin to the grounding capacitance.

Abstract: It is an object of the present invention to provide the voltage controlled oscillation circuit preventing the influence of a capacitor in the output side of the loop filter connected to a control voltage terminal. A voltage controlled oscillation circuit comprising of an amplifier circuit, a resonance circuit, a varactor diode, a choke element whose one end is connected to the cathode of a varactor diode, a capacitor connected between the other end of the choke element and a ground, and a resistor connected between the other end of the choke element and a control voltage terminal. A sub-resonance of the resonance system of the voltage controlled oscillation circuit due to the capacitor in the output side of the loop filter connected to the control voltage terminal can be eliminated, the abnormal oscillation of the voltage controlled oscillation circuit can be prevented, and the relationship between the oscillation frequency and the control voltage exhibits almost linear.

Abstract: A voltage-controlled oscillator includes a multilayer substrate having two grounding electrodes. A bare chip IC, a grounding capacitance connected to the collector of a transistor in an oscillator stage disposed in the IC, an electronic component, and other elements, are mounted on one surface of the multilayer substrate, and the electronic components are connected by an electrode pattern. A microstrip line electrode is disposed between the grounding electrodes inside the multilayer substrate, and the collector of the transistor and the capacitor disposed in the IC are connected by through-holes. A sealing resin is filled between the IC and the multilayer substrate to maintain the mounting strength of the IC. A space is provided between the IC and the capacitor to prevent adhesion of the sealing resin to the grounding capacitance.

Abstract: It is an object of the present invention to provide the voltage controlled oscillation circuit preventing the influence of a capacitor in the output side of the loop filter connected to a control voltage terminal. A voltage controlled oscillation circuit comprising of an amplifier circuit, a resonance circuit, a varactor diode, a choke element whose one end is connected to the cathode of a varactor diode, a capacitor connected between the other end of the choke element and a ground, and a resistor connected between the other end of the choke element and a control voltage terminal. A sub-resonance of the resonance system of the voltage controlled oscillation circuit due to the capacitor in the output side of the loop filter connected to the control voltage terminal can be eliminated, the abnormal oscillation of the voltage controlled oscillation circuit can be prevented, and the relationship between the oscillation frequency and the control voltage exhibits almost linear.