Radio frequency (RF) feedthrough system and method
First Claim
1. An aviation transponder system comprising:
- a permanently-mounted antenna;
a circulator connected to said antenna;
a signal splitter connected to said circulator;
a receiver connected to said signal splitter;
said circulator selectively directing received signals whereby the receiver is selectively isolated from high-power transmitted signals;
a plurality of PIN limiter diodes directly connected to the circulator and adapted for limiting current passing from said permanently-mounted antenna to said receiver in said second mode of operation;
said permanently-mounted antenna, said permanently-mounted receiver module and the circulator comprising an aviation transponder system; and
said transponder system being configured for adding an external portable device that can receive input information from an existing antenna and send output information to a display unit.
1 Assignment
0 Petitions
Accused Products
Abstract
An aviation transponder system comprising a permanently-mounted antenna, a permanently-mounted receiver module comprising a receiver, a signal splitter, and an external connector, and a portable receiver module, wherein a signal received on the permanently-mounted antenna is passed to the signal splitter of the permanently-mounted receiver module, wherein the signal splitter splits the signal such that the signal is sent to both the receiver and to the external connector, and wherein the portable receiver module is connected to the external connector, whereby the permanently-mounted antenna is used by the receiver of the permanently-mounted receiver module and fed through the permanently-mounted receiver module and made available to the portable receiver module through the external connector.
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Citations
17 Claims
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1. An aviation transponder system comprising:
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a permanently-mounted antenna; a circulator connected to said antenna; a signal splitter connected to said circulator; a receiver connected to said signal splitter; said circulator selectively directing received signals whereby the receiver is selectively isolated from high-power transmitted signals; a plurality of PIN limiter diodes directly connected to the circulator and adapted for limiting current passing from said permanently-mounted antenna to said receiver in said second mode of operation; said permanently-mounted antenna, said permanently-mounted receiver module and the circulator comprising an aviation transponder system; and said transponder system being configured for adding an external portable device that can receive input information from an existing antenna and send output information to a display unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An aviation transponder system comprising:
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a permanently-mounted antenna; a circulator connected to said antenna; a signal splitter connected to said circulator; a receiver connected to said signal splitter; said circulator selectively directing received signals whereby the receiver is selectively isolated from high-power transmitted signals; an external connector connecting the signal splitter with the receiver; the permanently-mounted antenna being used by the receiver and received RF signals being fed through the external connector to the receiver; said receiver being GNSS-equipped; said circulator having operating modes configured for;
a) sending signals from the transmitter to the permanently-mounted antenna in a first mode of operation; and
b) taking signals received on the external antenna and routing them to the receiver in a second mode of operation;a plurality of PIN limiter diodes directly connected to the circulator and adapted for limiting current passing from said permanently-mounted antenna to said receiver in said second mode of operation; said permanently-mounted antenna, said permanently-mounted receiver and the circulator comprising an aviation transponder system; and said transponder system being configured for adding an external portable device that can receive input information from an existing antenna and send output information to a display unit. - View Dependent Claims (11, 12, 13, 14, 15)
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16. A method of passing RF signals through a transponder, which includes the steps of:
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providing said transponder with a permanently-mounted antenna; providing a circulator connected to said antenna; providing a signal splitter connected to said circulator; providing a receiver connected to said signal splitter; providing an external connector connected to said signal splitter; providing a receiver connected to said signal splitter through said external connector, said receiver being adapted for receiving RF signals from said signal splitter through said external connector; providing a plurality of PIN limiter diodes directly connected to the circulator and adapted for limiting current passing from said permanently-mounted antenna to said receiver in said second mode of operation; providing said permanently-mounted antenna, said permanently-mounted receiver and the circulator comprising an aviation transponder system; and providing said transponder system being configured for adding an external portable device that can receive input information from an existing antenna and send output information to a display unit. - View Dependent Claims (17)
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Specification