RF 433 or 315Mhz module antenna problem

[nikhil arora]

I have attached the schematic diagarm with little explanation on it.
the main part we have to see is the Antenna ouput of the RF module.

We have to connect this ouput to the antenna for this we use tracks to the antenna connector on PCB.
Now for short distances we can use this track(if made long) as anttena and for long distance we can connect external antenna.
now my questions are

1>
Just by having a 50ohm track at antenna ouput can behave as good antenna for short distance.

2>
The losses in the bend of the track are significant at these frequencies can we ignore that losses. or I have to make bend in other way.

3>
for calculating the width of the pcb for 50ohm line we need only the dielectric constant of pcb and thickness of pcb only.
I am using glass epoxy or similar pcb without any ground plane so we cannot use microstip line formula.


I will answer all your queries
thank you for each reply

Added latter
the blue track 50ohm cannot be 50ohm as there is no ground plane in the ckt
I am going to connect the antenna connector very near to the antenna ouput pin of the module

suggestions are welcome on makin the track more effiecient.