![RF7188 DUAL-BAND GSM900/DCS1800 TRANSMIT MODULE](http://s1.studyres.com/store/data/008864477_1-f08e3a036718b52e2bb8368378f38e03-300x300.png)
Feed lines
... What commonly available antenna feed line can be buried directly in the ground for some distance without adverse effects? Coaxial cable If you install a 6 metre Yagi antenna on a tower 50 metres from your transmitter, which of the following feed lines is best? RG-213 ...
... What commonly available antenna feed line can be buried directly in the ground for some distance without adverse effects? Coaxial cable If you install a 6 metre Yagi antenna on a tower 50 metres from your transmitter, which of the following feed lines is best? RG-213 ...
Feed lines
... What commonly available antenna feed line can be buried directly in the ground for some distance without adverse effects? Coaxial cable If you install a 6 metre Yagi antenna on a tower 50 metres from your transmitter, which of the following feed lines is best? RG-213 ...
... What commonly available antenna feed line can be buried directly in the ground for some distance without adverse effects? Coaxial cable If you install a 6 metre Yagi antenna on a tower 50 metres from your transmitter, which of the following feed lines is best? RG-213 ...
feedlines
... What commonly available antenna feed line can be buried directly in the ground for some distance without adverse effects? Coaxial cable If you install a 6 metre Yagi antenna on a tower 50 metres from your transmitter, which of the following feed lines is best? RG-213 What are some reasons not to use ...
... What commonly available antenna feed line can be buried directly in the ground for some distance without adverse effects? Coaxial cable If you install a 6 metre Yagi antenna on a tower 50 metres from your transmitter, which of the following feed lines is best? RG-213 What are some reasons not to use ...
2 x 5-watt dual BTL class-D audio amplifier
... Behavior of pin DIAG for various protection conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Power derating curves for PCB used as heatsink . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Test board (TDA7491LP) layout . . . . . . . . . . . . . . . . . . . . . . . ...
... Behavior of pin DIAG for various protection conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Power derating curves for PCB used as heatsink . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Test board (TDA7491LP) layout . . . . . . . . . . . . . . . . . . . . . . . ...
SUBSTRATE NOISE COUPLING IN RFICS
... procedure. The design flow is then developed to model the substrate and is calibrated to the measurement data and simulations vs. measurements are reported as a foundation of a design flow that is used in the next chapters. In Chapter 4 a substrate isolation guide is developed based on two main meth ...
... procedure. The design flow is then developed to model the substrate and is calibrated to the measurement data and simulations vs. measurements are reported as a foundation of a design flow that is used in the next chapters. In Chapter 4 a substrate isolation guide is developed based on two main meth ...
Optically Coupled Linear Isolation Amplifier
... NOTES: (1) All electrical and mechanical specifications of the 3650MG and 3652MG are identical to the 3650HG and 3652HG, respectively, except that the following specifications apply to the 3650MG and 3652MG: (a) Isolation test voltage duration increased from 10 seconds minimum to 60 seconds minimum; ...
... NOTES: (1) All electrical and mechanical specifications of the 3650MG and 3652MG are identical to the 3650HG and 3652HG, respectively, except that the following specifications apply to the 3650MG and 3652MG: (a) Isolation test voltage duration increased from 10 seconds minimum to 60 seconds minimum; ...
MAX2021 High-Dynamic-Range, Direct Up-/Downconversion 650MHz to 1200MHz Quadrature Mod/Demod General Description
... Note 10: The output noise versus POUT curve has the slope of LO noise (Ln dBc/Hz) due to reciprocal mixing. Note 11: Conversion loss is measured from the single-ended RF input to single-ended combined baseband output. Note 12: The LO noise (L = 10(Ln/10)), determined from the modulator measurements ...
... Note 10: The output noise versus POUT curve has the slope of LO noise (Ln dBc/Hz) due to reciprocal mixing. Note 11: Conversion loss is measured from the single-ended RF input to single-ended combined baseband output. Note 12: The LO noise (L = 10(Ln/10)), determined from the modulator measurements ...
Ultra-low Jitter LVCMOS Fanout Buffer/Level Translator w/ Universal
... The first definition used to describe a differential signal is the absolute value of the voltage potential between the inverting and non-inverting signal. The symbol for this first measurement is typically VID or VOD depending on if an input or output voltage is being described. The second definitio ...
... The first definition used to describe a differential signal is the absolute value of the voltage potential between the inverting and non-inverting signal. The symbol for this first measurement is typically VID or VOD depending on if an input or output voltage is being described. The second definitio ...
S2000-PI
... connected into the isolated RS-485 interface line by means of Isolated Line Terminator Connection Switch (see Figure 4). The resistance of the load resistors being connected can be 120 ohm, 150 ohm, or 620 ohm. The table which specifies how switch positions match with connected resistors is shown on ...
... connected into the isolated RS-485 interface line by means of Isolated Line Terminator Connection Switch (see Figure 4). The resistance of the load resistors being connected can be 120 ohm, 150 ohm, or 620 ohm. The table which specifies how switch positions match with connected resistors is shown on ...
Lab #8 - facstaff.bucknell.edu
... (i.e., differential) source were driving the circuit, RS1 and RS2 would be combined into a single source resistance RS. In Figure 1, the equivalent source voltages are represented by node voltages vs1 and vs2, and the actual input voltages of the diff amp are represented by vin1 and vin2. The singl ...
... (i.e., differential) source were driving the circuit, RS1 and RS2 would be combined into a single source resistance RS. In Figure 1, the equivalent source voltages are represented by node voltages vs1 and vs2, and the actual input voltages of the diff amp are represented by vin1 and vin2. The singl ...
iraudamp4a
... countermeasures is to drive both of the channels out of phase so that one channel consumes the energy flow from the other and does not return it to the power supply. Bus voltage detection is only done on the –B supply as the effect of the bus pumping on the supplies is assumed to be symmetrical in a ...
... countermeasures is to drive both of the channels out of phase so that one channel consumes the energy flow from the other and does not return it to the power supply. Bus voltage detection is only done on the –B supply as the effect of the bus pumping on the supplies is assumed to be symmetrical in a ...
Miteq DR-125G-A, 12-GHZ Fiber
... The incident light travels down some length of single-mode fiber (this may not always be the case but is desired). As the surface moves, a Doppler-shifted light is reflected back up the single-mode fiber to the through leg of the fused coupler (0.72 dB of loss). The Doppler-shifted light (also refe ...
... The incident light travels down some length of single-mode fiber (this may not always be the case but is desired). As the surface moves, a Doppler-shifted light is reflected back up the single-mode fiber to the through leg of the fused coupler (0.72 dB of loss). The Doppler-shifted light (also refe ...
Document
... 3. Press MENU to return to the Main menu and use UP and DOWN to select Current IPAddress. The current IP-address is shown in yellow at the bottom of the OLED. 4. On a computer in the same network, use a browser to open the assigned IP-address, for ...
... 3. Press MENU to return to the Main menu and use UP and DOWN to select Current IPAddress. The current IP-address is shown in yellow at the bottom of the OLED. 4. On a computer in the same network, use a browser to open the assigned IP-address, for ...
Power dividers and directional couplers
![](https://commons.wikimedia.org/wiki/Special:FilePath/Microlab_10dB_dir_coupler.jpg?width=300)
Power dividers (also power splitters and, when used in reverse, power combiners) and directional couplers are passive devices used in the field of radio technology. They couple a defined amount of the electromagnetic power in a transmission line to a port enabling the signal to be used in another circuit. An essential feature of directional couplers is that they only couple power flowing in one direction. Power entering the output port is coupled to the isolated port but not to the coupled port.Directional couplers are most frequently constructed from two coupled transmission lines set close enough together such that energy passing through one is coupled to the other. This technique is favoured at the microwave frequencies where transmission line designs are commonly used to implement many circuit elements. However, lumped component devices are also possible at lower frequencies. Also at microwave frequencies, particularly the higher bands, waveguide designs can be used. Many of these waveguide couplers correspond to one of the conducting transmission line designs, but there are also types that are unique to waveguide.Directional couplers and power dividers have many applications, these include; providing a signal sample for measurement or monitoring, feedback, combining feeds to and from antennae, antenna beam forming, providing taps for cable distributed systems such as cable TV, and separating transmitted and received signals on telephone lines.