Academia.eduAcademia.edu

Figure from:Chip-package codesign of a low-power 5GHz RF front end

See full PDFdownloadDownload figure
Fig. 10. Transistor schematic of the VCO circuit. Fig. 11. Microphotograph of the DECT VCO circuit integrated in MCM-D technology with wirebonded bare dice.

Figure 10 Transistor schematic of the VCO circuit. Fig. 11. Microphotograph of the DECT VCO circuit integrated in MCM-D technology with wirebonded bare dice.

Related Figures (17)

Fig. 1. Cross section of the MCM-D technology. Also shown are a flip-chip solder bump, a resistor, capacitor, and inductor.
Fig. 1. Cross section of the MCM-D technology. Also shown are a flip-chip solder bump, a resistor, capacitor, and inductor.
Fig. 8. Cross section of a micromechanical switch. Fig. 9. Picture of the brick-wall antenna under RF testing.
Fig. 8. Cross section of a micromechanical switch. Fig. 9. Picture of the brick-wall antenna under RF testing.
Fig. 12. Output power spectrum of the DECT VCO at the fundamental oscillation frequency.
Fig. 12. Output power spectrum of the DECT VCO at the fundamental oscillation frequency.
Fig. 13. (a) Microphotograph of the second-order 5-G Hz bandpass filter. (b) Measured transfer function of the bandpass filters.
Fig. 13. (a) Microphotograph of the second-order 5-G Hz bandpass filter. (b) Measured transfer function of the bandpass filters.
Fig. 14. Microphotograph showing the low noise amplifier. The small bare-die transistor is mounted upon the MCM. At the bottom is a small part of the GaAs down-converter MMIC.
Fig. 14. Microphotograph showing the low noise amplifier. The small bare-die transistor is mounted upon the MCM. At the bottom is a small part of the GaAs down-converter MMIC.
Fig. 15. Measurement results of the down-conversion gain of the 5-GHz WLAN receiver RF module, consisting of two MCM bandpass filters, LNA, and MMIC down-conversion mixer.
Fig. 15. Measurement results of the down-conversion gain of the 5-GHz WLAN receiver RF module, consisting of two MCM bandpass filters, LNA, and MMIC down-conversion mixer.
Fig. 17. RF front end of a 5-GHz WLAN receiver. Fig. 16. Lumped element model for multitum spiral inductor
Fig. 17. RF front end of a 5-GHz WLAN receiver. Fig. 16. Lumped element model for multitum spiral inductor
Fig. 18. (a) Voltage-controlled oscillator. (b) Microphotograph of the VCO with off-chip MCM inductors, flip-chipped onto the MCM substrate.
Fig. 18. (a) Voltage-controlled oscillator. (b) Microphotograph of the VCO with off-chip MCM inductors, flip-chipped onto the MCM substrate.
Fig. 19. Microphotograph of the complete front-end MCM. Simulation Results for the VCO of Fig. 6 With Several Options for the LC Tank
Fig. 19. Microphotograph of the complete front-end MCM. Simulation Results for the VCO of Fig. 6 With Several Options for the LC Tank